给我一根喝饮料的吸管好 吗 ?May I have a straw for my drink?行车气流抽吸管的曲轴箱开口通常是很好地遮挡着的.The crankcase opening for the roaddraft tube was usually well shielded.移植液体培养物可采用吸管.Transfers of liquid cultures can also be made by pipette....
In the use of plastic mulch for BOPP film at prbroin gelatinize.在使用拉伸聚丙烯薄膜覆膜时,必须在膜上涂胶.What is the difference between Glassine envelopes & BOPP polypropylene?玻璃纸封套 和 BOPP聚丙烯有什么不同?This machine is used for BOPP 、 PET 、 CPP ...