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。
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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