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Ntau ntxiv Cov Menyuam STEM 175pcs 18 Qauv Hauv 1 DIY Kev Tsim Kho Rub Rov Qab Engineering Tsheb Muaj Tswv Yim Ntsia Hlau Thiab Txiv Ntseej Sib Dhos Tsheb Ua Si Cov Khoom Siv Rau Menyuam Kawm Ntawv Lub Tsev Thaiv Cov Khoom Ua Si Rau Cov Tub Hluas Khoom Plig
Cov khoom ua si sib dhos no muaj 175 yam khoom siv, thiab tag nrho cov khoom txuas nrog los ntawm cov ntsia hlau thiab cov txiv ntoo. Nws tuaj yeem sib dhos ua 18 lub tsheb sib txawv raws li cov lus qhia uas peb muab, lossis cov menyuam yaus tuaj yeem siv lawv lub tswv yim los sib dhos ua cov duab muaj tswv yim ntau dua.
