Cov txheej txheem:
Video: Dab tsi yog qhov piv txwv ntawm lub tshuab yooj yim rub?
2024 Tus sau: Taylor Roberts | [email protected]. Kawg hloov kho: 2023-12-16 00:29
Piv txwv ntawm cov hlua suav nrog: of the elevator siv ntau yam cov hlua txhawm rau ua haujlwm. Lub tshuab nqa khoom nqa uas tso cai rau cov khoom kom nqa mus rau hauv pem teb siab dua yog a rubey lawv. Wells siv lub rubey system kom nqa lub thoob tawm ntawm lub qhov dej.
Dhau li, hom tshuab yooj yim dab tsi yog lub tshuab rub?
Lub pulley yog ib hom tshuab yooj yim uas siv lub log nrog lub zawj hauv nws thiab a hlua . Cov hlua haum rau hauv qhov zawj thiab ib kawg ntawm hlua mus nyob ib ncig ntawm lub load. Koj rub rau lwm qhov kawg. Lub pulley pab koj txav lub nra lossis hloov kev coj ntawm lub zog.
Ib tus kuj tseem yuav nug tau tias, 3 yam ntawm cov hlua tes yog dab tsi? Pulleys muaj ib lub log uas tig ntawm lub qag-uas yog ib tug pas nrig los ntawm qhov chaw ntawm lub log-thiab ib txoj hlua, cable, los yog saw. Muaj peb lub ntsiab hom pulleys : tsau, txav tau, thiab sib xyaw. Ib tsau cov pulley log thiab qag nyob hauv ib qho chaw.
Kuj kom paub, muaj qee yam piv txwv ntawm rubeys nyob ib ncig ntawm lub tsev?
Daim ntawv teev cov piv txwv ntawm Pulleys hauv Peb Lub Neej Txhua Hnub
- Curtains/Blinds. Ib qho yooj yim txheej txheem ntawm rubey yog siv nyob rau hauv cov ntaub ntawv ntawm blinds, thiab lawv pab nyob rau hauv rub curtains nce thiab nqis.
- Pob tawb paj. Ib qho yooj yim pulley system tuav lub pob paj, uas tuaj yeem txo qis kom dej cov paj.
- Dej Zoo.
- Crane.
- Nkoj Nkoj.
- Ntxuav Tsev.
- Cov Khoom Siv Ua Si.
- Pob Zeb Climbers.
Dab tsi yog pulley hauv science?
Pulley yog ib lub tshuab yooj yim thiab suav nrog lub log ntawm lub qag ruaj khov, nrog rau qhov zawj ntawm cov npoo los coj txoj hlua lossis cable. Pulleys yog siv los txo lub sijhawm thiab lub zog nqa los nqa cov khoom hnyav. Ntawm no, Thauj khoom = qhov hnyav ntawm ib yam khoom. Kev siv zog = tus nqi ntawm lub zog yuav tsum nqa los yog txav cov khoom no.
Pom zoo:
Ib qho piv txwv ntawm kev thov ntawm tus nqi yog dab tsi?
Tus nqi thov sim yaum koj kom pom zoo lossis tsis pom zoo ntawm qee yam. Piv txwv: Thaum sim nrhiav tus nqi thov nrhiav cov ntsiab lus xws li 'muaj txiaj ntsig / zoo nkauj / ntxim nyiam', 'zoo / phem / phem', 'txoj cai / tsis ncaj ncees', 'zoo tshaj / zoo tshaj / phem'
Tus nqi piv txwv piv txwv yog dab tsi?
Piv txwv Piv txwv ntawm tus nqi qab nthab suav nrog cov nqi txwv ntawm cov roj av, nqi xauj tsev, kev tuav pov hwm hwm thiab lwm yam hauv ntau lub tebchaws. Xav txog kev ua lag luam tsis txaus ntseeg cov khoom siv thiab cov sijhawm thov uas tau muab hauv qab no: Chav
Dab tsi yog qee qhov piv txwv ntawm kev phom sij ntawm txoj kev?
Ntau hom kev phom sij nyob rau hauv lub teb chaws txoj kab nqaim nqaim txoj kab, tsuas yog dav txaus rau ib lub tsheb. Ntse khoov. Cov qhov muag tsis pom kev npog los ntawm cov ntoo loj hlob thiab cov ntoo. Unmarked kev sib tshuam Nees. Cov neeg caij tsheb kauj vab. Cov neeg taug kev taug kev ntawm ib sab ntawm txoj kev. Ua liaj ua teb tsiaj
Ib qho piv txwv zoo ntawm qhov tsis muaj cheeb tsam yog dab tsi?
Feem ntau, qhov muag tsis pom kev tuaj yeem muaj txog li 20 ko taw nyob rau hauv pem hauv ntej ntawm lub tsheb tav xis, ntawm ob sab ntawm lub tsheb, tshwj xeeb tshaj yog nyob ib sab ntawm lub tsheb, thiab mus txog 200 ko taw hauv qab. Cov chaw qhov muag tsis pom los yog qhov chaw txaus ntshai no feem ntau hu ua tsis muaj cheeb tsam
Dab tsi yog qhov piv txwv ntawm kev thov qhov tseeb?
A. Kev lees paub qhov tseeb: lees paub tias muaj xwm txheej muaj, muaj, lossis yuav muaj. Txhawm rau txhawb nqa-siv cov pov thawj tseeb uas txaus, ntseeg tau, thiab tsim nyog. Piv txwv-- Cov tub ntxhais hluas uas koom nrog kev sib daj sib deev, tsis muaj kev tiv thaiv yuav tsim kab mob STDs, xeeb tub, thiab/lossis cog lus AIDS