Cov kev cai ntawm kev txheej:
1. Zaj duab xis kho kom zoo nkauj
2. Hnav tsis kam, khawb tsis kam, corrosion tsis kam, oxidation tsis kam thiab lwm yam yeeb yaj kiab ua tau zoo
3. Tiv thaiv cov ntiv tes, tiv thaiv dej thiab tiv thaiv kev ua qias tuaj
Cov Ntsiab Lus Tseem Ceeb ntawm Zhenhua Program:
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Muab cov khoom siv txheej thiab kev txhawb nqa kev siv tshuab txheej rau cov chaw tsim khoom lag luam thiab cov neeg siv khoom.
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Muab cov khoom siv txheej thiab kev txhawb nqa kev siv tshuab txheej rau cov chaw tsim khoom lag luam thiab cov neeg siv khoom.



