2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ua haujlwm tawv, hauv metallurgy, nce hauv cov tawv tawv ntawm cov hlau induced, txhob txwm los yog yuam kev, los ntawm hammering, dov, kos duab, lossis lwm yam txheej txheem ntawm lub cev. … Qhov laj thawj rau qhov zoo li qhov tsis zoo no nyob hauv cov qauv crystalline ntawm cov hlau.
Dab tsi yog qhov nyuaj hauv kev tshawb fawb?
Hardening yog txheej txheem metallurgical metalworking siv los ua kom tawv tawv ntawm cov hlau. Lub hardness ntawm ib tug hlau yog ncaj qha proportional rau lub uniaxial yield kev nyuaj siab ntawm qhov chaw ntawm lub imposed hom. Cov hlau tawv dua yuav muaj kev tiv thaiv ntau dua rau cov yas deformation dua li cov hlau tsis tshua muaj zog.
Puas ua haujlwm tawv zoo lossis phem?
Cold ua hauj lwm / lim hardening yog dav siv los ua kom cov neeg kho tshuab yam ntxwv ntawm ntau alloys. Hardening muab lawv cov khoom tseem ceeb ntawm toughness thiab shaping peev xwm.
Dab tsi yog qhov txawv ntawm kev ua haujlwm txias thiab ua haujlwm tawv?
Txoj tawv tawv, tseem hu ua kev ua haujlwm txias lossis ua haujlwm tawv, yogtxheej txheem uas cov hlau tau ua kom muaj zog thiab nyuaj dua los ntawm kev deformation mus tas li. … Tempering yog hom thiab tus nqi ntawm kev ua rau cov hlau thaum nws nyob ntawm lub zeb, suav nrog kev kho cua sov thiab ua haujlwm txias.
Lub hom phiaj ntawm kev ua haujlwm tawv yog dab tsi?
Kev ua haujlwm tawv tawv yog ib qho kev pabcuam tus kheej, tsim qauv tsim los pab cov neeg mob rov qab mus rau lawv qhov kev ua haujlwm ua ntej raug mob hauv qhov chaw nyab xeeb thiabraws sijhawm. Nws lub hom phiaj los pab cov neeg mob rov tau txais lawv cov biomechanical, hlab plawv, metabolic, neuromuscular thiab psychosocial functions nrog rau lawv cov hauj lwm.
Pom zoo:
Cov kws tshawb fawb twg tau rov tshawb pom Mendel txoj haujlwm?
Peb botanists - Hugo DeVries, Carl Correns thiab Erich von Tschermak - nws tus kheej rov tshawb pom Mendel txoj haujlwm hauv tib lub xyoo, ib tiam tom qab Mendel luam tawm nws cov ntawv. Lawv tau pab nthuav kev paub txog Mendelian txoj cai ntawm kev qub txeeg qub teg hauv ntiaj teb kev tshawb fawb.
Lub sijhawm twg ntawm qhov kev tshawb fawb tshawb fawb yog qhov tseem ceeb tshaj?
Teb: Thaum theem thib ob kev tshawb nrhiav kev tshawb fawb muaj txiaj ntsig. Dab tsi yog qhov tseem ceeb tshaj plaws ntawm kev tshawb nrhiav kev tshawb fawb? Qhov nyuaj tshaj plaws thiab tseem ceeb tshaj plaws ntawm Txoj Kev Tshawb Fawb:
Puas yog kev coj ua ntawm kev coj ncaj ncees tseem ceeb hauv kev tshawb fawb vim li cas lub hlwb?
Muaj ntau yam laj thawj vim li cas nws tseem ceeb kom ua raws li kev coj ncaj ncees hauv kev tshawb fawb. Ua ntej, qauv txhawb nqa lub hom phiaj ntawm kev tshawb fawb, xws li kev paub, qhov tseeb, thiab zam kev ua yuam kev. Piv txwv li, kev txwv tsis pub tshaj tawm, kev dag, lossis qhia tsis tseeb cov ntaub ntawv tshawb fawb txhawb qhov tseeb thiab txo qhov yuam kev.
Kev tshawb fawb txog kev tshawb fawb primatological yog dab tsi?
Primatology yog kawm txog tus cwj pwm, biology, evolution, thiab taxonomy ntawm nonhuman primates. … Primatologists ua hauj lwm nyob rau hauv ntau qhov chaw nrog rau cov tsev kawm ntawv, cov chaw tshawb fawb primate, lub chaw soj nstuam, sanctuaries, thiab zoos.
Cov kws tshawb fawb puas tuaj yeem dhau los ua tus kws tshawb fawb?
Thawj cov neeg caij nkoj yog cov tub rog uas muaj kev paub txog kev ya dav hlau dav hlau thiab keeb kwm hauv engineering. … Rov qab los, ib qho kev tsim nyog rau cov kws tshawb fawb-astronauts yogtus kws kho mob hauv tshuaj, engineeringlossis kev tshawb fawb ntuj xws li physics, chemistry lossis biology.
