Cov tuam txhab tau nthuav dav ntau lawm, kev txiav txim siab tau nce nyob rau tib lub sijhawm kuj ua rau cov khoom siv raw, tshwj xeeb tshaj yog PBAT, PBS thiab lwm yam khoom siv degradable membrane hnab hauv 4 lub hlis xwb, tus nqi nce siab. Yog li ntawd, cov khoom siv PLA nrog tus nqi ruaj khov tau nyiam. Po...
Nyeem ntxiv