Video: Koj xam mAs li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Rau xam koj MAS , ntawm no yog ib ce ceev. Ua kom sov, thiab tom qab ntawd khiav rau 6 feeb, kom deb li deb tau. Khaws koj qhov kev khiav ceev kom ruaj khov li sai tau. Tom qab ntawd ntsuas qhov kev ncua deb koj khiav hauv 6 feeb thiab faib nws los ntawm 100 kom tau txais koj qhov ceev hauv mais ib teev.
Tsuas yog li ntawd, koj yuav txiav txim siab li cas mAs?
mA = Milliamp s = vib nas this (feem ntau nyob rau hauv feem ntawm ib sec.) kom tau ib tug mAs ntawm 20 koj tsuas muab qhov sib xyaw ua ke ntawm cov lej uas yuav tawm los sib npaug 20 ex: 200 x 0.125, 40 x 0.5, 20 x 1, thiab lwm yam.
Tsis tas li ntawd, qhov txawv ntawm mA thiab mAs yog dab tsi? Qhov sib txawv ntawm mA thiab mAS yog raws li hauv qab no: mA : sawv cev rau milliampere thiab tsuas yog qhov tam sim no dhau los ntawm cov filament ntawm lub raj xray. mAs : sawv rau milliampere los ntawm filament ntawm xray raj, muab faib los ntawm lub sijhawm uas tam sim no dhau mus.
Kuj nug, kuv yuav nrhiav tau mAs hluav taws xob li cas?
600 mA x 0.1 sec. = Kev nce qhov tam sim no lossis lub sijhawm yuav ua rau kom muaj hluav taws xob ntau ntxiv; yog li ntawd tus nqi hluav taws xob nyob rau hauv ib qho kev ntsuam xyuas yog sawv cev li mAs.
Dab tsi yog kVp thiab mAs hauv hluav taws xob?
Kilovoltage ncov. Nrog rau mAs (tube tam sim no thiab lub sij hawm raug cov khoom) thiab pom, kVp ua (tube voltage) yog ib qho ntawm cov kev teeb tsa tseem ceeb uas tuaj yeem hloov kho rau x-ray tshuab los tswj cov duab zoo thiab cov neeg mob koob tshuaj.
Pom zoo:
Yuav ua li cas koj xam tus qauv sib txawv ntawm PMP?
Cov mis siv nyob rau hauv PMBOK rau tus qauv sib txawv yog yooj yim. Nws tsuas yog (P-O) / 6. Qhov ntawd yog qhov pessimistic kev ua ub no kwv yees rho tawm qhov kev kwv yees qhov kev xav tau muab faib los ntawm rau. Qhov teeb meem yog qhov no nyob rau hauv tsis muaj txoj kev zoo los yog daim ntawv tsim ib qho kev ntsuas ntawm tus qauv deviation
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Yuav ua li cas koj xam qhov zaus ntawm zaus thiab feem pua?
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Yuav ua li cas koj xam qhov muaj peev xwm poob hauv ib lub voj voog?
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Yuav ua li cas koj xam lub zog ntawm ib tug electromagnetic yoj?
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