“卷筒”的拼音？

“卷筒”的英语可以翻译为：[机] drum，spool，coiling block，winding drum ...

她买了一只能装得下那些胶卷筒的旅行包。She bought a travel-bag large enough to contain the film canisters.介绍一种在卷筒放卷和收卷的切割分切机器中的进刀与退刀机构.A kind of cutter undercarriage mechanism used in cutting machine is introduced.剃刀被装在用于出入卷筒的充气圆柱上.Razor wa...