Cov ntaub ntawv ntawm cov menyuam yaus lub thawv thawv

Menyuam yaus lub thawv rau menyuam yog ua ob cov ntaub ntawv tseem ceeb: mos khaub ncaws hnav thiab cov khaub ncaws tawv tawv. Cov ntaub mos mos feem ntau yog ua los ntawm cov ntaub ntawv xws li cov ntaub oxford xws li cov ntaub ntawv oxford, cov ntoo thiab hnav-resistant thiab hnav-resistant, haum rau kev mus deb; Thaum cov ris nra hnyav yog ua los ntawm cov khoom yas xws li ABS, PC lossis PP. Ntawm lawv, cov khoom siv rau cov pc yog cov ruaj khov tshaj plaws thiab hnav-resistant, tab sis tus nqi kuj yog siab, haum rau kev mus ncig ntev lossis sijhawm uas xav tau kev tiv thaiv ntau dua. ‌