翻译后“According to the China Customs (Air),or the requirements of,any chemical transport,DGM testing must be done,and some products,do a test that can be used year,some products have to do every time” 翻译后“According to the China Customs (Air),or the requirements of,any chemical transport,DGM testing must be done,and some products,do a test that can be used year,some products have to do every time”