Cov kev cai ntawm kev txheej:
1. Txheej zaj duab xis ci ntsa iab
2. Txheej xim kho qhov muag
3. PVD txheej xim khawv koob zaj duab xis thiab zaj duab xis gradient
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 kev daws teeb meem zoo, zoo, thiab pheej yig rau kev tsim kho tshiab tas mus li thiab kev loj hlob ntawm kev lag luam.
