Zoo tau nruab nrog kev sim tshiab kev sim tshuab ua kom muaj kev cia siab thiab kev txhawb nqa ntawm cov khoom.
Cov ntaub ntawv yooj yim
| Khoom npe | Nrig Bibmock |
| Daim ntawv thov | Sab Nraum, Phiab, Tshuab Ntxhua Khaub Ncaws, Muaj Dej Dej |
| Qhov chaw ntawm keeb kwm | Zhejiang, Suav |
| Kev siv | Lub phiab, tshuab ntxhua khaub ncaws |
| Txheem lossis cov tsis tau | Puag |
| Koom haum tshaj xov | Dej ntws |
Cov khoom lag luam zoo
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02
Cov kws txawj engineers thiab cov neeg ua haujlwm.
