人造纤维

It s also used as a component for the fabrication fiber, and an creodont for the removal of exposed lead circurt board.

在金属加工工业中用来制作所需熔剂、金属表面处理、制铝钛硼合金，作砂轮研磨盘成分，以此降低操作温度，还用作人造纤维阻燃剂及路中清除露出铅侵蚀液。

Caps should only be made of black cotton poplin, broadcloth, rayon, or silk, to match gown they are to be used with.

帽子应该只用黑色府绸，精细布，人造纤维物或者丝绸来衬长袍。