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Tuam txhab transformation direction
Nrog rau cov pa phem ntawm cov hnab yas rau ib puag ncig thiab dej hiav txwv, teb rau lub teb chaws txoj cai ntawm cov hnab yas.Peb lub tuam txhab npaj siab ua cov khoom hloov pauv hauv rau lub hlis lossis ib xyoos.Siv zog txhawb cov khoom siv hnab yas degradable.Nws suav txog 80% ntawm tag nrho cov pro ...Nyeem ntxiv
