Dab tsi peb hu ua hluav taws xob stairs?
Dab tsi peb hu ua hluav taws xob stairs?

Video: Dab tsi peb hu ua hluav taws xob stairs?

Video: Dab tsi peb hu ua hluav taws xob stairs?
Video: dab neeg 1292 poj ntxooj tshuab hluav taws 2024, Kaum ib hlis
Anonim

Ib qho escalator yog kev txav mus los ntaiv uas nqa cov neeg nruab nrab ntawm cov plag tsev ntawm ib lub tsev. Nws muaj lub cev muaj zog-drivenchain ntawm tus kheej txuas cov kauj ruam ntawm txoj kev uas lub voj voog ntawm ib qho kev sib tw uas ua rau lawv kab rov tav. Escalators yog siv thoob ntiaj teb nyob rau hauv qhov chaw uas nqa yuav beimpractical.

Kuj paub yog, dab tsi yog hluav taws xob stairs hu ua?

Tus escalator yog ib qho khoom siv thauj khoom uas txav tib neeg. Nws yog kev txav mus los ntaiv nrog cov kauj ruam uas txav los yog nqis siv txoj siv conveyor thiab lem, ua kom txhua kauj ruamhorizontal rau cov neeg caij tsheb. Thaum Lub Peb Hlis 15, 1892, Jesse Renopatented nws tsiv ntaiv los yog inclined of elevator, raws li nws hu ua nws.

Ib sab saum toj no, lub down escalator hu ua dab tsi? Peb ua tau hu kev mus nqis escalator ib tug "descalator." DESCending escALATOR.

Tsis tas li ntawd, escalators puas siv tau ua ntaiv?

MYTH – Escalators tau ncav tes thiab tuav koj. MYTH – Yog ib tus neeg nce qib yog sawv tseem, nws yog ib txheej ntawm ntaiv . Qhov tseeb – Escalator cov kauj ruam tsis yog qhov siab qhov tseeb rau kev taug kev ib txwm thiab yuav tsum tsis txhob ua siv zoo li ntawd.

Lawv hu li cas ntaiv hauv tebchaws Askiv?

Thaum twg lawv nyob sab nraud, lawv ntau zaus hu ua ' cov kauj ruam 'tso lawv hu ua ' ntaiv .' Cov kauj ruam lexically muaj qhov tseem ceeb ntawm cov qauv ib leeg uas yog riser thiab tread. Qhov tseeb hais tias kev txav taw qhia los ntawm txhua qhov footfall kuj yog hu ua ib "kauj ruam" tej zaum contributes thiab.

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