炮制方法
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concocting method
制造方法
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The technology and apparatus for continuous preparing of the pitch and continuous filament were described. The method of concocting pitch for spinning was also introduced in the paper.
本文综述了沥青及其长丝的连续制备工艺和装置，同时还叙述了纺丝用沥青的调制。
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