砍伐树木的人;针排;针板;落体;
There exists also much fibers surface damage brought about by beaters, card clothing, faller pins, etc.
打手、钢丝布和梳针等金属机件都会损伤纤维表面。
The development of the one-faller bar is studied in detail.
详细研究了单程式针梳板的发展.
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