一個進程內(nèi)的所有線程使用同一個32位地址空間，而這些線程的執(zhí)行由系統(tǒng)調(diào)度程序控制，調(diào)度程序決定哪個線程可執(zhí)行和什么時候執(zhí)行線程。線程有優(yōu)先級別，優(yōu)先權(quán)較低的線程必須等到優(yōu)先權(quán)較高的線程執(zhí)行完任務(wù)后再執(zhí)行。在多處理器的機器上，調(diào)度程序可以把多個線程放到不同的處理器上運行，這樣可以使處理器的任務(wù)平衡，也提高系統(tǒng)的運行效率。
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SIEMENSSITOP6EP1961-2BA00 


NIBMELTRIC63-38043INLETPLUGDSN30，30A，3P+E，480VAC，10HP


TOWERELECTRONICSVIDEOJET1000460POWERSUPPLY206998


TOSHIBA5P3N0147P44TRANSFORMER 


SIEMENS100BB1224QBUCK-BOOST 


TOYOMACHINERYCP-8GATEUNITCP8


VALUTRANV050BTZ13RBINDUSTRIAL 


DANIELWOODHEAD50W54REPLACEMENT 


LAMBDALVT-40-144-B


NIBHBL5361HUBBELLSINGLERECEPTACLEBRN.20A，125V，2-POLE3WIRE


NIBRELIANCEELECTRIC251.88-02/55712TRANSFORMER3183/1022，251.88-02，55712


VOLGENPSN05003APOWERSUPPLYPSN-05003A 


HOFFMANE3PBCONTROLPANELENCLOSUREW/ALLENBRADLEY800T-H31 


HAMMONDMANUFACTURING97837TRANSFORMER350VA，60HZ，55DEGC 


CROUSEHINDSX8658-3FEMALE 


MAGNETEKJEFFERSONELECTRIC246-1111 


POLARISELECTRONIQUEOP250AI 


NIBGENERALELECTRIC9T58K2804 


SQUARED52046-124-50 


BRADHARRISON43321 


ALLENBRADLEY50403DRIVERBOARDFOR30/40/50HP


POLYTRONDEVICESMODEL:P33600REGULATEDPOWERSUPPLY748-7300103 


NIBHOFFMANA1614LP，JBOXtype12LIFTOFFCOVER16"X14"X.5"


COMPUTERPRODUCTSNFS25-7608POWERSUPPLY100-240VAC，40W，50/60HZ 


SAGINAWCONTROL&ENGINEERINGSCE-20SA2210LPPL 


FLEX-COREVT8-003EVOLTAGETRANSDUCER0-50VAC 


SCCSTATICCONTROLSCORPORATION920PS-24-10 


COSELR25U-24POWERSUPPLY100-120VAC，0.70AMP，50/60HZ


H-HTWCO610485-01-BTRANSFORMERH-0989


ANELECT1122TRANSFORMERCOIL80VA，50A60HZ，PRIM:2X115V，SEC.24V3.33A


EXAIR7901-H 


STIVESWINDINGSVT310809.93 


AMERICANAUTOGARDE-CT-020TRANSFORMERRATIO:20:0.025A，50-400HZ


HOFFMANA10106CHENCLOSUREJICBOXTYPE12HINGEDCOVER10X10X6，54880


CHAPMANPOWERSUPPLYMODEL:4STDC5PART:11342120/240V5000V


FURNASVYNCOENCLOSURESTYPE:APO，Z-939253 


NIBACMET1-81048GENERALPURPOSETRANSFORMER1PHASE120-240V 


AUTOMATIONDIRECTCPT115-50-F 


ERICSON2312-PW6PPERMATITELOCKINGPLUGSNEMAL6-20


FLEX-CORE58RBL-301CURRENTTRANSFORMERS300:5AMP


FLEX-CORE58RBL-201CURRENTTRANSFORMERS200:5AMP


SOLAEGSHEVI-DUTYINDUSTRIALCONTROLTRANSFORMER.500KVACLASS105


ACOPIANB24G210REGULATEDPOWERSUPPLIES1-1/4A250V


RELIANCEELECTRIC411027070S 


RENISHAWPSU-9CMMINTERFACE 


LEVITON1222-2IIVORYSINGLEPOLETOGGLESWITCHES20A，120/277VAC/CA


NIBGENERALSIGNALE275ETRANSFORMERCLASS:5802


























NIBPROTECTIONCONTROLSSS3CP 


NIBSQUAREDQO3100BNFINDOORCIRCUIT 


GTSTM001501101ULTRANSFORMERTIPOTNMBN150CU/E，50/60HZ


ROBROYSTAHLINJ1412HWJUNCTIONBOX14"x12x6"BC-441323


STATICCONTROLSCORPORATION920-PS-24-12 


WESTINGHOUSE6262A46H14CURRENT 


CONTROLCIRCUITTRANSFORMERY350KVA350HERTZ50/60HDK484


HUBBELLHBL5661SINGLERECEPTACLES2POLE3WIRE15A250V


ALLENBRADLEYX-210922 


NIBSCESCE-4PBAIENCLOSURE4HOLE，NEMA12，3.5‘‘X10‘‘X4.84‘


NIBHBL8262GYSAHUBBELLDUPLEX 


NIBALLENBRADLEY800T-1TZ 


NIBPOWERONEHBB15-1.5-A 


NIBGENERALTIMETALLEYINDUSTRIESEF1333ARK 


ULTRAKSAFENETSYSTEMA402-302 


SOLAELECTRIC28-24-250 


NIBGENERALELECTRICS9T51B0002TRANSFORMER.050KVA60HZPH1TYPEQB9T51B2


ELASTIMOLD20MAFBGGROUNDINGDEVICES


NIBERICSON2930-FS24 


NIBLEVITON4760SINGLELOCKINGRECEPTACLES15A，277VAC


NIBWIEGMANNHUBBELLPBXD1EXTRADEEPPUSHBUTTONENCLOSURE4X4X5


CONDORHBAA40W-A+DC 


NIBRELIANCEELECTRIC64670-11T 


GENERALELECTRICCR2940BC 


SIEMENS6EP1311-1SH02 


GENERALELECTRICDUPLEXTWISTLOCKRECEPTACLES15A，125V


SIIIF5003-02BTHERMAL 


ATLANTICAT-1250TRANSFORMER3082-16463 


COOPERCROUSE-HINDSTP676GANGABLESWITCHBOXES2-3/4" 


ALLENBRADLEY800T-3TA 


SOLAELECTRIC83-24-260-2 


IDECPS5R-SE24POWERSUPPLY100-240VAC，2.3A，50/60HZ，90W


NIBMAGNETEK211-021 


NIBGTSTM001501121TRANSFORMERCD1700451-PHASE150VA，460V/230V，0.8A，SB75444


APPLETONGR-EFHCSERIESCONDUITOUTLETBOX3WAY.75INCHNPTNEMA3/4


INCLUDESOLYMPICCONTROLSFX-506A 


TPCWIRE&CABLE63508DC5POLE 


SINEA4211P03-1816YE15 


SINEP22953-YE15RECEPTACLE21PINMALE 


NIBOMRONS8E1-02505D 


COSELLDA150W-12 


NEMIC-LAMBD