PP是一种半结晶性材料.PP is a semi crystalline material.PBT是一种通过浓缩成型而制备的,一种半结晶热塑性塑料.Polybutylene terephthalate ( PBT ) is a semicrystalline thermoplastic polymer formed by a condensation process....
He carried his books in his school satchel.他用书包携带课本.He carefully balanced the satchel so that its contents would not spill out onto the floor.他仔细地把小背包放好，不让里面的东西掉到地板上。To be sure, his hand satchel.手提包肯定行!...
可是话说 回来 ,用死猫怎么治疣子 呢 ? ”But say -- how do you cure'em with dead cats? "用那样糊涂蛋的方法还谈什么仙水治疣子!Talk about trying to cure warts with spunk - water such a blame fool way as that!哈克,用那个办法我已经治好手上无数个疣子.I've took off thous...
照现在的情形，这条法律是难以执行的。The law as it stands is unworkable.一种按照能在计算机中执行的格式而存在的程序.A program in a form that can be executed on a computer.这项命令是谁执行的?By whom was the order executed?...