《ASML 866-8039-00201》
《ASML 866-8039-00201》
※福州卓凱電子科技有限公司
※聯(lián)系人:程工
※電話:0591-22983103
※手機(jī):15205082707
※QQ:340135333
※E-mail:340135333@qq.com
BoschRexrothServodynSM50/100-T1070077370-10850A
353A4F1CNB4
GESPE120
YTEA250-8
ALLENBRADLEY800T-FX6A5FNFP800TFX6A5
SQUAREDSY/MAXCLASS8030PS35
1746-OB16E
6FX1121-2BA03西門子板卡
INDRAMATMKE047B-144-KG1
OMRONE2E-X10E1NSFPE2EX10E1
REXROTHKDV1.3-100-220/300-220=KDV1.3-100-220/300-W1
DSQC266G
SQUARED2POLE40AMPCIRCUITBREAKERFA22040AB
3HAB3220-1Coveraxis1-3
46712-208-51RevHReplacementCircuitBoardAB
SIEMENS6ES7450-1AP00-0AE0
140DDI35300
ALLENBRADLEY800T-N292NSPP800TN292
ROSEMOUNT300S3AAM9B4
YASKAWAUGHMED-12GG20F1
T-BELTKXF0DX0RA00
Honeywell6213560R#11435
6ES5951-7LB14
TT08102203-7614
P0900NYFBM27
ALLENBRADLEY1747-PT1NSFP1747PT1
AM-SA85-030
CIMR-MXN25P5
ALLEN
BALLUFFPOSITIONS-CONTROLLERBPC-D00300-E1-48P-00-E
174CEV30020
140ACO13000(含端子連接器)1
1756-PA75R
1772-B1
Honeywell621-2150R6212150R
RELIANCE803.62.00CARDBOARD
ABSLC500SLC5/04CPU1747-L542SERIESB
810A21CAB810A21C
AM-0984-Q30
FBM12:CM400YN
YASKAWA安川∑-Ⅴ系列伺服驅(qū)動(dòng)器SGDS-04A15A
CIMRP7U45P51
MoellerPKZM1-1Motorschutzschalter-unused/OVP-
1746-OV16SeriesC
OPTIMATEOP-15101
WP115VEGW-CAKINGBRIGHT
CIMRV7AM20P71
620-3033
AB1747-DCM
SiemensSinumerik810MeasuringCircuit6FX1121-4BA03
3HNM09681-1APPLICATOR-GUN
NEWAEGMODICONELFAE83SD203P415V-ACCIRCUITBREAKE
PC-0984-785
Nice!A-BAllenBradleySLC5001747-L30CSerCA2
Allen-Bradley1794OB161794-OB16serAFLEXBUSGOOD!
AB1746-A13ModuleChassis13-Slot
AB2093-AC05-MP5
15CL6872X1-A2REDANALGOUTCSA41B7288X0326
3HAB2136-1/09
40751New-NoBox,Rexroth019850K515SolenoidCoil96Vdc35W
RechnerSensorsKAS-80-C-18-4-SX
TSX3721101
AB1394-SR36AFSERIESBOUTOFBOX
AB1771-NIS/B1771NIS
ABB6011BZ10001B
P0900NXFBM25
SST-PFB-GE
Hollysys和利時(shí)電源模塊FM191/FM191A-A
3HAC14265-1DSCQ539
約克6091L-0040A
AB17691769-CP3線纜
BergerWDP3-014.0801
FERRAZSHAWMUTRF600600A250VTIMEDELAYREABLEFUS
JZNC-YIU01-E安川供應(yīng)商
3HNA016324-001BRACKET
1771-NC6/A1卓凱電子程工0591-62182558AS-P892-0001
TC-RPCXX1
3HNA011359-001CABLEEXT.SERVODISCONNECT
1786-RPA
AS-B846-001
MDD115B-N-020
3HNA016401-001PRESSURECONTROLVALVE
XCS-E5311
DSQC539
3HAC020813-139
ALLENBRADLEY845HIncrementalEncoder
COMMONX1-AA339A8571X042SERIALI/FACEP3.01
Bachmann(巴赫曼)plcRS204
140DDO35310
57360001-AN
AllenBradley0A07MagneticStarterReplacementCoil
51196488-101Cable,AMRedundancy
IC693ALG391
OPTO22DA5
1771-VHSC
FANUC發(fā)那科A06B-0315-B205
3HAWC116984Scanner,O1D106
170DNT11000C
IC200MDL650
BALLUFFPOSITIONS-CONTROLLERBPC-D00300-E1-48P-00-E
1747-L553
PO911SM
ABB9280026.C
AB1785-ME64A64KEEPROM1785ME64for1785PROCESSORNIFSP
815BOV169AB815BOV169
ALLEN BRADLEY 800T-J701KE7B USPP 800TJ701KE7B
AB1771-KA2
AB1771-DEABSOLUTEENCODERMODULE
AllenBradleyDCOutputModule,#1771-OBD/B
802PRLBAR108AB802PRLBAR108
laetusargus6012掃描頭
6ES7901-3BF0
Allen-Bradley2711-NC1PanelViewUpload/Downloadcable
1746-IM16
現(xiàn)貨原裝EMERSONDeltaVKJ1501X1-BB1
COMAU0.0402AMCSCPI
西門子A5E00250753-01
安川YASKAWA伺服電機(jī)SGMPH-04A1A-YR51
SeekaTakexGLXS520SensorNew
ALLENBRADLEYCIRCUITBREAKER140U-J2D3-D17*NEW*
OMRONC1000H-CPU1-E2V1
DAO01
EMACSR3G-6650P
1336E-MC2-SP43A
DSQC2593HAB2205-1
ALLENBRADLEY1336-GM6SCANPORTKIT1336GM6NEW
800MSDE11BAB800MSDE11B
COMCOPF2488
ABBABBTBC7-30-10接觸器
BCLL11
800TU1AB800TU1
滾筒89*11592S
170BDM34630
MX200
SCHNEIDER140SAI94000S控制器
1747-L514
140DAO84210
MCH41A0110-5A3-4-0T08276781
安川交流伺服驅(qū)動(dòng)器SGDA-08AS
1756-CNBR
ALLENBRADLEY1771-IBD/BINPUTMODULE130MA5VDC205F
1336F-B350-AN-EN-CM
193A1L4AB193A1L4
TSXDMISPY100E
1336F-A015-AA-EN-L4
ALLENBRADLEY2706-LV2PUSPP2706LV2P
因此,采用容錯(cuò)設(shè)計(jì)的系統(tǒng)對(duì)要求不能停機(jī)、不能失控的高可靠系統(tǒng)是十分重要的。
1771VHSC
2711P-T7C6B1
140ERT85410
JAMSC-120NOM26100
(12)AllenBradleyFuseholder,1492-FB1MC30-LNNB
TESCOMELECTRONICPRESSURECONTROLLER3000SI-1*NICE*
BECKMANCAT#373096MP-200TOOLP200LFORBIOMEK1000
1746-P1
KJ1501X1-BB1
TSXCANCD300
SCHUMACHERATCS-151
ABBPBSE1027
1746-NO4V
RELIANCEELECTRIC804112-R/57C413B
VDIMNCGR043TB
ABSLC500PowerSupply1746-P2SeriesC10slots
ORIENTALMOTOR5GK60KGEARHEAD
Bachmann(巴赫曼)plcRS204
XBTN401
3HNA009032-001CABLECBK.X1-MCOB.X1
ALLEN-BRADLEY1771-IVNIBFreeUSAS/H
AB1785-L80B/EPROCESSOR1785L80BEENHANCED
SiemensSinumerik810MeasuringCircuit6FX1121-4BA03
Allen-Bradley1771-SIM8-PointDiscreteI/OSimulatorModule
3HAW107700517W107700517Switchsupport1track660mm
3HNA006686-001CABLEAX1.X4-AX1.SMU.X8
ALLENBRADLEY1747-L531/EPROCESSOR
CRANE11/2'GATEVALVE125S-200CWP
SGMAH-04AAA61D-OY
3HNA009169-001DRIVEUNITSERVO4-5-6HW
Moeller/Kl?cknerMoeller?P7-125Lasttrennschalter
140CRP93100
MoellerGS3NH-Sicherungsunterteil3pol.-unused/OVP-
3HAB8101-18
SNAP-B16MCP
A5E30947477
GEFANUCIC693MDL240
ABAutomationController1742-LP120A
9973605
Pre處理器模塊TSXP57254M
ANCO/PORISBASE_04/HSBASE_04/RHS
E4809-032-396
VDIF0630302201
SIEMENS1FT5066-0AF01-9-Z
Allen-Bradley1785-L40E/EPLC-5/40EthernetPLCModule
AB1756-OF6VI/AREV-K01CONTROLLOGIXANALOGISOLATED62810
IC693ALG221
3HNM12322-1BOLTFORTURNING
1756-L74/A
KAFDG5V52C100NXVMFPD7HI31
AB1771-NIS/B1771NIS
HONEYWELL620-0036POWERSUPPLYMODULE
140XTS00200
SAC-RL100-010
AllenBradleyPowerSupply,1771-P2
IndramatMHD093B-058-PGO-AA
FANUCEO4657-502-000C模塊
Siemens6ES5467-8EE11
PU515
AutonicsCT6-2PCT62PCounter/Timer
3HNP02529-1
伺服器AK-BX556M
AB電流互感器105062REV07
AllenBradleyBarCodeScanner2755LD4C4NEW
140DDO35300
2711P-T6C3D
1756-M14
AB1785-L80B/EPROCESSOR1785L80BEENHANCED
621-0018R
MEEP-001
3HNA003831-001PSIB-01
JAMSC-B2803
R88D-UP08HA歐姆龍價(jià)格
GUARDMASTERLTD440H-R03074NSPP440HR03074
CIMRE7U4110
ABBDSTA131
1768-PB3
FX-40DU-TK-ES
TSX07312422
MoellerPKZM1-1Motorschutzschalter-unused/OVP-
193A1D1AB193A1D1
SEC-4400
1746-IB16
500BOD930AB500BOD930
MDD115C-N-020
霍尼韋爾FC-TSDO-0824底板
OMRONZS-LD80
HG5700ZC
3HAB2207-1
800TFXP16AA1AB800TFXP16AA1
ABBRVC6-5A功率因數(shù)控制器
1336F-AQF50-AN-IT
ABB3HNE00025-1/131
140XBP01600
1746-NO4I
P0900NXFBM25
SIEMENS M74005-H8810W1 USPP M74005H8810W1
ALLENBRADLEY1794-IF4IFNFP1794IF4I
1756-M08SEABControlLogixSercosInterfaceModuleSeriesB,FW13.7
PHOTOSWITCH 871CA10N30A2 USPP 871CA10N30A2
REXROTH力士樂HSM01.1-FW1
140CPU67160
BUSS1BS103
ALLENBRADLEY1746-BTMSER.B1746BTMNEWFACTORYSEALED
353A4F1CNB4
ABInputModule1756-IB32SeriesA
3HNA007206-001CABLEMTB.X15-HVC.X1
easy619-AC-RC德國(guó)穆勒
SEWMM05D-503-000.55kw變頻器
HED8OH12/100K1?4SREXROTH
貝加萊B&R2005系列PCC控制系統(tǒng)3DI477.6
2711-PRN10C
siemens6ED1053-1FG00-0BA0/6ED1053-1CA00-0BA0
2711P-K12C6A2
6ES7322-1FH0
AB1746-P2模塊
ALLENBRADLEY1336F-BRF20-AE-?ENUSPP1336FBRF20AEEN
ALLENBRADLEY800T-N292NSPP800TN292
1771-NBV1
22B-D2P3N104
SUPELCO575656-UHybridSPEPrecipitation50mg96-WellP
BoschServodynSM25/50-TC1065670-105(Nr.8)
FOXBORODCSFBM17DM400YT
EUPECFS225R12KE3
TSXBLZL01
6ES7317-2AJ10-0AB0
AB1395直流備件154966152503REV09
1756-L55M13
電子式過負(fù)荷保護(hù)裝置TSB075ED-2(進(jìn)口)1
SIEMENS6SE7016-OTP50驅(qū)動(dòng)器
SGMG-09A2AB伺服電機(jī)
AllenBradley1771-OGDPLC
法國(guó)施耐德SchneiderElectric104.00140CPS12400PLC控制器
ABD31705-1A26491-A
DSQC544A
3HNA004978-001
AS-B570-010
XPEHEW-L1-2T0-R5-FCREELTD
1756-IB32
140AII33010
西門子6EP1333-2AA00
ALLENBRADLEYPROCESSW/2MBMEM1756-L1/AM3/A205C
LS6800
ABPLC1756-TBCH全新帶包裝!!
應(yīng)用在電力拖動(dòng)系統(tǒng)或伺服電機(jī)的單軸或多軸位置控制。采用模擬量模塊能控制物理參數(shù),例如溫度、壓力、速度和流量等,并提供PID等閉環(huán)控制的功能??梢灾С?jǐn)?shù)控機(jī)床的控制和管理、多軸控制等。
AB1747-L532SER.D
DSQC117
IC200CBL002
西門子PLC6ES7313-5BE01-0AB0
發(fā)那科A06B-6117-H209控制器
安川伺服驅(qū)動(dòng)器SGDH-A3AE安川伺服電機(jī)SGM-08A3FJ53
3BSE008560R1
5STP28L4200
ABAllenBradley1771PSCCpowercableNEW*
1771-IGD
ABBSAFT-113-POW
貝加萊B&R2005系列PCC控制系統(tǒng)3DI477.6
PGN+50-1AS
TSXCBY010K
VDIA-51500
PHOTOSWITCH42SML-7110-QDNSFP42SML7110QD
IC697MDL253RR
1336F-BRF30-AN-IT
AS-5GB
1772-B1
LNC1756-OA16AllenBradleyControlLogix1756OA16N130
M.SYSTEM模塊R3-TS8S8點(diǎn)(隔離)熱電偶輸入
2711-B5A3L3
貝加萊3AT350.6
FOXBOROP0970WA
GEFanucIC693CHS397L
AB1746-P2模塊
MVME172-263/260
9766-210
ABB3BSE001077R1廠家
MAI32MAD
JZNC-XRK01
SCHNEIDER(施耐德)AS-B827-0325
92-01059-00
2711-K5A3L3
1756-IB16
TSXASR200
BergofCDIO
MC-TAIH12超值特價(jià)
140CPU42402
140DDO35300
SGMAH-04A1A6CD-OY
1C31227G01
1756-BA1BatteryfALLENBRADLEY1756-L61SERA
TRICONEX10191531BOX#16
1756-ENBT
XC1765DPCXILINX
1C31227G01
ALLENBRADLEY2711-B5A10L1X*RECONDITIONED?*
P0900NXFBM25
ABBDSQC352A3HNE0009-1/111
RexrothhydraulicPumpPVV163160
GEVMIVME-31222
140DDO35300
MC-HPF123I/O-ONLY15-SLOTFILECEEMPTY
DC330E-KE-200-2?0-000000-00-0
安川伺服驅(qū)動(dòng)器SGDM-10ADA、SGDH-10AE、R88D-WT10H
ABBCS31ECZ底座
AB160-BA01NSF1USPP160BA01NSF1
SGMAH-04A1A6CD-OY
ABTHERMOCOUPLE1746-NT81746NT8TC/MVINPUT8CHANNELNIB
1336F-C150-AN-IT
ABPanelview2711-T9C9B2711T9C9
620-3033
6ES7322-1FF01-0AA0
MPR51A025-503-00
2711P-B6C1A
9TECNIPLAST1290D441PISAFESEALTOPU-TEMPBOTTLEDEPR
SquareMHL3660033DC1680
3HNM12188-1BRACKETFORCONNECTORS
CIMR-MXN25P5
XPEWHT-L1-3B0-R2CREELTD
1756-IB32
170FNT11000
VDIMNCGR041TBEP
GEFanucIC693CHS397L
6ES7390-5BA00-0AA
6SE7041-8HK85-1MA0/C98043-A1695-L41
XFR600-4
170BNO67100
BENTLYNEVADA本特利125840-01
AB1771-OADCACOUTPUTMODULE12-120V
3HAC9398-1
AS-P44-500
AS-E952-012
ABB通訊板3HNA016493-001
施耐德Premium系列PLC
VDI67D40212
AEGAS-B885-111
A30-30-101
安川伺服驅(qū)動(dòng)器加電機(jī)SGMG-05A2AASSGDB-05ADG3交
AB5130-MRM2/A?????
3HNP02421-1BULKHEAD
ALLENBRADLEYOSAI8600PANELCAT#(8600MULF2)OS5651
DSQC544A
AS-521P-008
800HAR2APAB800HAR2AP
ModiconAEGMicro110CPU31100110CPU31100
AllenBradleyEthernetDF1VisualBasicDLLDriver
VDIF241160
OrientalMotorORK1GN-AORK1GNAReversibleMotor
力士樂板卡REXROTH型號(hào):RA1S30或RA1S3X
PO911SM
3AFE646930261
51201397-002Cable,DSPower,2M
SANYOPRS-4604F
ADVANTESTR6243
西門子PLC6ES7-361-3CA01-0AA06ES7361-3CA01-0AA0
1746-RT25B
1756-PA72
6ES7390-5AA00-0AA
ABBSDCS-FEX-323BSE005715R1
PHOTOSWITCH43GR-TMC25SLNSFP43GRTMC25SL
1756-OG16
140DDI35300
ABBDSQC3273HAB7230-1
IC698CPE010
SNAP-FIELDCONB
安川伺服YASKAWA驅(qū)動(dòng)器CACR-PR10-BC3CY169B
508/00/20/00
西門子6ES7321-1BH01-0AA0配包裝
ATV312HU7.5N4
S5KA4R4A6
1336F-BX040-AJ-DE
1SAP210600R0001
GJR5250200R107SK90
美國(guó)ABAllen-Bradley136.001771-OWNACPU處理器
140DDO35300
服務(wù)器(FOXBORO)P922043607001臺(tái)
BoschServodynModulKM2200-T048799-110
AB2093-AC05-MP5
磨輪(2000號(hào))DRSZ0191DISC841
JAMSC-IF70T
6SE6420-2UD22-2BA12.2KW
Siemens6GK1502-2CA10
BENTLYNEVADA本特利前置放大器
140CPS11420
2711P-T10C15B1
BENTLYNEVADA本特利125768-01
安川伺服電機(jī)SGMAH-02AAA21SGMAH-02AAA41
1336F-AA4
DSQC633A3HAC031851-001
STK304405014?
3HAC020813-014
各個(gè)控制設(shè)備生產(chǎn)廠家如羅克韋爾自動(dòng)化公司,通過其產(chǎn)品和與微軟的合作,正在將Windows DNA結(jié)構(gòu)引入制造業(yè)。這些公司在制造業(yè)軟件開發(fā)過程中具有自己的策略框架,如羅克韋爾互聯(lián)網(wǎng)應(yīng)用結(jié)構(gòu),或稱RNA,就是與微軟提出的為企業(yè)定義的DNA結(jié)構(gòu)緊密平行的一種。
YASKAWACONTROLLERJZRCR-XPU01B*NEW*
VERYNICEAB8SLOTI/OCHASSIS1771-A2BB
NKTU01-3低價(jià)銷售ABBBailey
DSQC3303HAB6372-1
1SAP250200R0001
TI80GJR5211900
413286004
SAIA模塊PCD4.N210M4電源模塊/PCD4.N21
1785-LT
USAGED-30A22K
170FNT11001
KOLLMORGENB-406-A-23
6ES7322-1FH0
SQUARED2POLE40AMPCIRCUITBREAKERFA22040AB
3HNP00934-1SCREW,UBS4174
WS-F6700-CFC廠家
RELIANCE803.69.00ZFABOARD
IC200CBL600
TC-RPSCA1RedundantPSChassisAdapter
1747-L553
TSXP575643M
TOKYOTK6132A8(CS8321SCD)1
WP115VEGW-CAKINGBRIGHT
NB2P56R3-AC
XPEWHT-01-5B1-R2CREELTD
1394-SJT10-C-RL
WESTINGHOUSE2840A21G01
ES-10-15
JRMSI-MB20
DDI03
3HAB2136-1/09
西門子PLC6ES7331-7KB00-0AB0
AllenBradley/Rockwell42GRP-9062-QDPhotoSwitch
6ES7322-1HH00-0AA0西門子代理
Pre協(xié)處理器BusX接口卡TSXPCIACC1
IS200VSVOH1B
SERVODRIVETDM1.4-050-300-W1-000
XPGBWT-L1-2B0-R5CREELTD
6ED1053-1CA00-0BA0
NDSO02貝利模塊低價(jià)銷售
安川交流伺服SGDB-60ADGSGMG-55A2AC
SQUAREDSY/MAXCLASS8030PS35
IMMFP02低價(jià)銷售貝利模塊
SANYOPRS-4605F
MM-PMD2-400C
USEDCLEANPULLCONTACTSGOOD
西門子C79040-A8410-C162-06-SS配件
DSQC236C
CACR-IR10SB
2711-B5A1OL2
FOXBOROFBM03,FBM33前鏈接器AD194RU
1746-IO4
VDI64560/M
1756-M23
490NTW00002
*NEW*AllenBradleyAB1785-L11B/E1785L11BPLC-5/11
170OLM86905
XPEHEW-H1-6D2-R2-F-01CREELTD
LOADCONTROLSINCKWH-2DIGITALPOWER-ENERGYMETER
AS-B225-000
51196488-101Cable,AMRedundancy
140CRA21210
JANCD-SR20B-1
TRICON3064E
1336F-B200-AA-EN-Q
FBM216端子P0916BX
1336F-B040-AE-EN
SNAP-ENET-S64
西門子MM440電容板 620363900201
6ES7314-6BG03-0AB0
6GK1105-2AA10
VDIA-51200J
3HAB6182-1
1756-BA1BatteryfALLENBRADLEY1756-L61SERA
CLC03
Excellent!ABAllenBradleyPanelView6002711-B6C20/C
A16B-3200-0500
1756-OF6VI
ABB變頻器備件BX5402通訊板
3HAC030211-004
AB1746-HSRVSERAFRN1.01SLCSERVOMODULE
5STP16F2800
TOSHIBA2N3A3110-C
1756-CNBR
CS3107KT92
AllenBradley1771-ASB
YOKOGAWA 250300LSLS USPP 250300LSLS
JAMSC-B1072-1
DANAHERS61000伺服驅(qū)動(dòng)器
Honeywell621-3560R
ABSLC5001747-L532SEREREV8FREESHIPGUARANTEED30DAYS
140CPS21400
3HNA015109-001PUSH-INCONNECTOR
AllenBradley2760-RB/AFlexibleInterface
6AR1312-0AA01-0AA0價(jià)格
46712-208-51RevHReplacementCircuitBoardAB
AS-E680-902
508/00/20/00
AEGModiconAuxiliaryPowerSupply,#AS-P120-000
ALLENBRADLEY1771-ASB/EREMOTEI/OADAPTER*SEALED
1394-AM04
SAMSUNG CPL9507 USPP CPL9507
TC-PRS021
JAMSC-C8660
2711-K5A10L1
FACTORYSEALALLEN-BRADLEY1756-CFM/A1756CFMSERA
1771-ASB/B誠(chéng)信品質(zhì)
MoellerBedienpanelModel:MI4-110-KG2
AB1756-CNB/EControlLogixControlNetBridge2012
3HAC14265-1DSCQ539
AB0-58718
1747-L30B
安川伺服控制器型號(hào):JZNC-NIF01-1
安川伺服驅(qū)動(dòng)器SGDM-60ADA6KW有的
TEXASINSTRUMENT6MT11-E05L
WATTS21/2'DIELECTRICUNION
AllenBradley1747-C13Cable-tobeusedwith1747-UIC
520VPU19200
SICOMPPC32-F
802TH2AB802TH2
PHOTOSWITCH 871L-B40E40-R3 NSPP 871LB40E40R3
USAGED-30AS2SE
6ES7231-7PB22-0XA8供應(yīng)商
laetusargus6012掃描頭
Honeywell620-06620-0636
DANAHER30051
DSAO120
1756-ENBT
GE-FANUCIC694MDL940配件
520VPU19200
1746-NT8
Allen-Bradley2711-T10G1
Allen-Bradley-1261746-IB16C
1336F-A040-AN-EN-L4
AB2093-AC05-MP5
Pre鎧裝分布式數(shù)字量輸出模塊TBXESP08C22
ALLENBRADLEY1732D-SIB8XOBV4NSFP1732DSIB8XOBV4
NEVERFLASHED
31C005-503-4-00
Robot及Alinger內(nèi)的電磁閥SOLENOIDVALVEHitachiS8820
AllenBradley1771-OB
ABALLENBRADLEYSLC5007SLOTPROCESSRACK*EX*
1747-M3
西門子備件C98043-A1600-L1-17C98043-A1600-L1-15
PLC和工控機(jī)目前的技術(shù)發(fā)展水平已大大超過其出現(xiàn)時(shí)技術(shù)水平,并各自定位在不同的層面。