Ib khub ntawm tweezers kuj yog piv txwv ntawm Third Class lever. Lub zog yog siv rau hauv nruab nrab ntawm cov tweezers uas ua rau muaj zog ntawm cov lus qhia ntawm cov tweezers. Lub fulcrum yog qhov twg ob halves ntawm tweezers koom ua ke.
Qeb twg yog rauj?
Ib tug rauj ua raws li qib thib pebthaum nws siv los tsav hauv tus ntsia thawv: lub fulcrum yog dab teg, kev siv zog yog siv los ntawm tes, thiab cov load yog qhov tsis kam ntawm ntoo.
Yuav ua li cas ntawm qib yog pliers?
Lwm cov piv txwv ntawm thawj chav kawm qibyog pliers, txiab, ib tug crow bar, claw rauj, pom-pom thiab qhov sib npaug. Nyob rau hauv cov ntsiab lus, nyob rau hauv ib tug thawj chav kawm lever lub dag zog (lub zog) txav mus rau ib tug loj nyob deb ntawm lub load mus rau ib tug me me nrug, thiab lub fulcrum yog nruab nrab ntawm lub dag zog (lub zog) thiab lub load.
Chav 3 levers siv rau dab tsi?
Nyob hauv hoob Peb Qib, Lub Zog yog nruab nrab ntawm lub Load thiab Fulcrum. Yog hais tias lub zog yog ze rau lub Load, nws yuav yooj yim rau nqa thiab ib tug neeg kho tshuab kom zoo dua. Piv txwv yog shovels, nuv ntses, tib neeg caj npab thiab txhais ceg, tweezers, thiab ice tongs.
Qhov twg yog piv txwv ntawm qib 3 qib ?
Thib peb levers
Nyob rau hauv chav kawm thib peb, kev siv zog yog nruab nrab ntawm lub load thiab lub fulcrum. Qee qhov piv txwv ntawm qib peb qib suav nrog nuv ntses, kab civliv puav thiab chopsticks. Thib peb levers txawv ntawm thawjthiab ob chav kawm levers vim es tsis txhob quab yuam cov multipliers, lawv yog ceev multipliers.
