Tuam txhab taw qhia

Tuam txhab taw qhia

* Lian Keeb Kwm


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* Lian Pab Pawg


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* Kev Tsim Kho Kev Lag Luam


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* Peb Ua Kev Tsim Neeg


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Cov khoom lag luam tshiab tshaj plaws hauv kev tsim kho cov khoom siv hauv tsev.

Lianchuang tau ua tiav 1142 hom patents nyob rau hauv tag nrho los ntawm Lub Kaum Ob Hlis 31.2019. histor

* Tsim qauv


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* Cov Chaw Tsim Kho


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* Lub chaw ua haujlwm zoo


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