Daim ntawv xaj no yog NTH daim ntawv xaj ntawm peb tus thawj saib xyuas Zhao tus neeg siv khoom qub hauv Australia.
Zhao tus thawj coj ntawm lub tuam txhab ua lag luam qub tub rog, nrog kev paub txog kev muag khoom nplua nuj thiab kev muaj peev xwm saib xyuas kev sib raug zoo nrog cov neeg siv khoom zoo.
Nws zoo heev ntawm kev tsim kom muaj kev sib raug zoo ntawm kev sib txuas lus thiab kev ntseeg siab nrog cov neeg siv khoom, yog li cov neeg siv khoom tuaj yeem xav tias muaj kev nyab xeeb los sab laj nrog nws txog cov teeb meem ntawm cov khoom thiab cov kev pabcuam. Nws ib txwm nkag siab tag nrho cov kev xav tau thiab cov kev xav tau ntawm cov neeg siv khoom, thiab los ntawm kev hloov kho kom haum thiab kev pabcuam tus kheej, kev txaus siab ntawm cov neeg siv khoom tau ua tiav zoo heev. "Miss Zhao yog peb tus khub. Nws paub peb cov khoom thiab peb txoj kev lag luam zoo heev, thiab peb ntseeg nws cov lus qhia." Ntau cov lus tawm tswv yim los ntawm cov neeg siv khoom.
Cov ntawv hlau carbon yog ib daim hlau tiaj tiaj, nyias ua los ntawm kev sib xyaw ntawm hlau thiab carbon. Cov ntsiab lus carbon hauv cov hlau carbon yog li ntawm 0.05% txog 2.1% los ntawm qhov hnyav, nrog rau cov pa roj carbon ntau dua ua rau cov hlau nyuaj thiab muaj zog dua. Cov ntawv hlau carbon feem ntau siv rau hauv kev tsim khoom, kev tsim kho, thiab kev siv hauv kev lag luam vim nws lub zog ruaj khov, kev hloov pauv tau yooj yim, thiab pheej yig. Nws tuaj yeem yooj yim tsim, vuam, thiab txiav kom loj me, ua rau nws yog qhov kev xaiv nrov rau ntau hom haujlwm sib txawv. Tsis tas li ntawd, nws tuaj yeem kho qhov chaw lossis ua tiav kom tau raws li cov kev xav tau tshwj xeeb.
Cov phaj hlau carbon yog cov tuab dua thiab muaj zog dua li cov phaj hlau carbon, thiab lawv feem ntau siv rau hauv kev tsim kho thiab kev siv, nrog rau kev tsim cov tshuab hnyav thiab cov khoom siv. Cov phaj hlau carbon muaj cov ntsiab lus carbon uas ntau ntawm 0.18% txog 2.1% los ntawm qhov hnyav, thiab lawv tuaj yeem sib xyaw nrog lwm cov hlau kom txhim kho lawv cov khoom thiab ua rau lawv haum rau cov ntawv thov tshwj xeeb. Qee cov ntsiab lus sib xyaw suav nrog manganese, silicon, tooj liab, nickel, thiab chromium.
Cov phaj hlau carbon tuaj yeem dov kub lossis dov txias, thiab lawv feem ntau muaj nyob rau hauv ntau qib thiab tuab. Qhov nyuaj thiab lub zog ntawm cov phaj hlau carbon nyob ntawm nws qib thiab cov tshuaj lom neeg sib xyaw. Cov phaj hlau carbon qis yog mos dua thiab ductile dua, thaum cov phaj hlau carbon siab yog tawv dua thiab muaj zog dua, ua rau lawv haum rau cov ntawv thov hnyav.
Qee qhov kev siv cov hlau carbon phaj suav nrog cov thav tsheb thauj khoom, cov choj, cov tsev, cov kav dej, cov thoob dej cia khoom, thiab cov hlab siab. Cov hlau carbon phaj kuj tseem siv rau hauv kev tsim cov khoom siv drilling hauv hiav txwv, cov khoom siv ua liaj ua teb, thiab cov tshuab siv hauv kev tsim kho. Lawv yog cov kev xaiv nrov rau cov ntawv thov uas xav tau lub zog, kev tawv, thiab kev ruaj khov.
Yog tias koj xav yuav cov hlau tsim tsis ntev los no, thov koj xav tiv tauj peb, (tuaj yeem ua raws li koj xav tau) peb kuj muaj qee cov Tshuag rau kev xa khoom tam sim ntawd.
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Lub sijhawm tshaj tawm: Tsib Hlis-24-2023