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PLA khoom yog dab tsi?Polylactic acid, tseem hu ua PLA, yog ib qho thermoplastic monomer muab tau los ntawm cov khoom siv txuas ntxiv, cov organic xws li pob kws hmoov nplej los yog qab zib.Siv cov peev txheej biomass ua rau PLA ntau lawm sib txawv los ntawm cov yas feem ntau, uas yog tsim los ntawm fossil fuels ...Nyeem ntxiv»
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Koj puas tau hnov txog cov khoom siv yas uas koj tsis tau hnov dua?Ib puag ncig tus phooj ywg thiab cov yas hloov pauv xws li cov khoom siv ntawv thiab cov khoom xyoob tau nyiam cov neeg nyiam.Yog li ntxiv rau cov no, dab tsi tshiab lwm cov ntaub ntawv muaj nyob rau?1) Khoom siv: ...Nyeem ntxiv»