Kev hais nqe raws sijhawm ntawm tus nqi ntawm cov khoom siv txhuas, tshwj xeeb tshaj yog kev lag luam txhuas tshwj xeeb. Peb muaj ze li ntawm 20 xyoo kev paub hauv kev tsim thiab ua cov khoom siv txhuas, muab cov neeg siv cov lus hais raws sijhawm thiab raug, thiab qhia cov neeg siv txog cov yam uas tuaj yeem cuam tshuam rau tus nqi ntawm cov khoom siv txhuas raws sijhawm. Dab tsi ua rau tus nqi ntawm cov khoom siv txhuas? Qhov laj thawj rau qhov no yog cov hauv qab no:
1, qhov nce ntawm cov khoom siv raw. Qhov nce siab ntawm tus nqi ntawm cov txhuas ingots yuav muaj kev cuam tshuam loj heev rau tus nqi ntawm cov txhuas profiles, yog li nws yog ib qho tseem ceeb los txiav txim siab tus nqi ntawm cov txhuas profiles.
2. Cov txheej txheem tsim khoom sib txawv. Cov tsos thiab cov nyhuv ntawm cov txhuas profiles yog txawv tom qab cov txheej txheem sib txawv. Yog li ntawd, qhov sib txawv ntawm cov txheej txheem kuj yog qhov txuas tseem ceeb los txiav txim siab tus nqi ntawm cov txhuas profiles.
3. Qhov sib txawv ntawm thaj tsam. Qhov cuam tshuam ntawm qhov sib txawv ntawm thaj tsam yog me me heev, thiab ntau tus neeg siv feem ntau tsis quav ntsej nws. Tab sis yog tias koj xav txog nws kom zoo zoo, piv txwv li, tus nqi ntawm cov khoom siv txhuas muag rau Beijing hauv Chengdu puas tuaj yeem zoo ib yam li tus nqi muag rau Chengdu? Cov lus teb yog tsis yog. Tshwj tsis yog tias tus neeg siv khoom them tus nqi thauj khoom, nws muaj peev xwm ua tau nrog tus nqi.
Lub sijhawm tshaj tawm: Lub Kaum Hli-07-2023