2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ib qho nkhaus yog qhov elastic dua li qhov nkhaus steeper. Muaj cov khoom hloov pauv, cov khoom tsim nyog, thiab cov neeg siv khoom tau txais txiaj ntsig tag nrho cuam tshuam cov txheeb ze elasticity ntawm kev thov. Kev muaj peev txheej, thev naus laus zis tshiab, thiab kev txwv tsis pub nkag txhua qhov cuam tshuam rau cov txheeb ze elasticity ntawm cov khoom siv.
Thaum xav tau yog qhov elastic qhov kev thov nkhaus yog?
3. Qhov xav tau Elastic. Relatively elastic thov hais txog qhov kev thov thaum qhov kev hloov pauv hauv qhov kev thov ntau dua li qhov kev hloov pauv hauv tus nqi ntawm qhov zoo. Tus lej tus nqi ntawm qhov xav tau ntawm qhov sib txawv ntawm ib mus rau infinity.
Puas xav tau elastic?
Kev thov kom zoo yog qhov tsis sib xws yog tias PED coefficient tsawg dua ib qho (hauv tus nqi tiag). Kev thov rau qhov zoo yog qhov elastic yog PED coefficient ntau dua ib qho (hauv tus nqi kiag). Kev thov rau qhov zoo yog chav tsev elastic thaum PED coefficient sib npaug rau ib qho.
Yuav ua li cas thiaj ua rau qhov kev thov rau cov khoom lag luam zoo sib xws?
Ntau yam txiav txim siab qhov kev thov elasticity rau ib yam khoom, suav nrog qib nqi, hom khoom lossis kev pabcuam, qib nyiaj tau los, thiab muaj peev xwm hloov pauv. Cov khoom lag luam pheej yig feem ntau yog elastic heev vim tias, yog tias tus nqi poob, cov neeg siv khoom yuav zoo li yuav tus nqi qis dua.
txhais li cas los ntawm kev thov elastic?
Kev xav tau elastic yog hais txog qhov kev thov thaum qhov kev hloov pauv uas tsim los ntawm kev thov ntau dua li qhov kev hloov pauv ntawm tus nqi ntawm cov khoom. … Piv txwv li, yog hais tias tus nqi ntawm cov khoom nce 20% thiab qhov kev thov ntawm cov khoom txo los ntawm 25%, ces qhov kev thov yuav kuj elastic.
Pom zoo:
Thaum twg qhov kev thov tseem elastic?
Kev xav tau elastic txhais tau hais tias yuav muaj kev hloov pauv ntau ntxiv ntawm qhov xav tau ntawm qhov zoo lossis kev pabcuam dua li tus nqi ntawm qhov zoo lossis kev pabcuam. Qhov kev thov zoo kawg nkaus inelastic txhais tau hais tias tsis hais tus nqi, qhov xav tau ntawm qhov zoo lossis kev pabcuam tseem nyob tas li.
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Ntawm qhov kev thov rau kev npaj rau tus kheej hauv huab xam?
Kev pabcuam tus kheej yog hais txog kev pabcuam los ntawm huab xamtus neeg muag khoom uas ua rau muaj kev pabcuam huab cua ntawm kev thov thaum twg lawv xav tau. Hauv kev pabcuam tus kheej raws li qhov xav tau, tus neeg siv nkag mus rau huab kev pabcuam los ntawm kev tswj hwm online.
Qhov twg yog qhov kev txiav txim siab rau kev tsis lees paub thiab rau kev ua kom muaj kev tawm tsam ntawm kev tawm tsam?
Kev qhuab ntuas tau siv los ntawm cov thawj coj loj hauv cov tub rog Romanrau txim rau cov koom haum lossis pab pawg loj ua txhaum cai, xws li kev ua phem, kev tawm tsam, kev tawm tsam, thiab kev tsis ncaj ncees, thiab rau lub pacification ntawm rebellious legions.
Dab tsi yog qhov nkhaus ntawm qhov nkhaus?
Nyob rau hauv qhov sib txawv geometry, lub vojvoog ntawm curvature, R, yog qhov sib txuam ntawm qhov curvature. Rau qhov nkhaus, nws sib npaug ntawm lub vojvoog ntawm lub voj voos uas zoo tshaj plaws kwv yees qhov nkhaus ntawm qhov taw tes. Rau qhov chaw, lub vojvoog ntawm curvature yog lub vojvoog ntawm lub voj voog uas zoo tshaj plaws haum rau seem ib txwm lossis kev sib txuas ntawm no.
