Puas yog tus ntsia hlau yog lub tshuab sib xyaw?
Puas yog tus ntsia hlau yog lub tshuab sib xyaw?

Video: Puas yog tus ntsia hlau yog lub tshuab sib xyaw?

Video: Puas yog tus ntsia hlau yog lub tshuab sib xyaw?
Video: ua nkauj nraug pheej hmoo by ceeb tsheej [ Official MV ] 2024, Kaum ib hlis
Anonim

Compound tshuab tsuas yog cov cav tov uas yog ua los ntawm ob los yog ntau tshaj yooj yim cov cav tov . Yooj yim cov cav tov muaj xws li ib tug wedge, ib tug inclined dav hlau (zoo li ib tug ramp), a ntsia hlau , ib tug pulley, lub log thiab qag, thiab ib tug lever.

Raws li, qhov twg yog lub tshuab sib xyaw?

A tshuab sib xyaw yog a tshuab uas muaj ntau tshaj ib qho yooj yim tshuab . Piv txwv li, lub wheelbarrow muaj lub zog, raws li koj tau nyeem ua ntej hauv zaj lus qhia "Yooj yim Cov tshuab , "thiab ib lub log thiab qag. Lwm yam cov cav tov sib xyaw , xws li tsheb, muaj ntau pua lossis ntau txhiab yam yooj yim cov cav tov.

Ib tug kuj nug, dab tsi yog lub tshuab yooj yim thiab lub tshuab sib xyaw? Cov tshuab yooj yim yog siv los ua haujlwm yooj yim dua. Lawv tau siv ntau qhov chaw thiab lub sijhawm hauv peb lub neej. Lawv muaj xws li: lub pulley, ntsia hlau, log thiab qag, wedge, lever, thiab lub dav hlau inclined. Compound tshuab yog tsim los ntawm ob lossis ntau dua cov tshuab yooj yim.

Tsis tas li ntawd, lub tshuab sib xyaw ua haujlwm ua haujlwm yooj yim li cas?

A tshuab sib xyaw yog ua los ntawm ob los yog ntau dua yooj yim cov cav tov . Thaum rau qhov yooj yim cov cav tov nce qhov kev ncua deb mus ncig, ua hauj lwm yooj yim dua , ib tshuab sib xyaw tuaj yeem nce lawv lub zog vim nws multiplies lub tshuab kom zoo dua ntawm txhua qhov yooj yim cov cav tov ua haujlwm ua ke.

Lub riam puas yog lub tshuab sib xyaw?

Cov riam yog a tshuab sib xyaw vim nws muab ob yam yooj yim cov cav tov . Cov riam tuav yog ib tug lever, thiab lub riam hniav ua raws li ib tug wedge.

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