工作针 meaning in Chinese

working needle

Mounting and grinding of fillet . before mouting the cylinder and doffer should be cleaned thoroughly , trued and balanced accurately ; and the crowns of the back of the fillets should be well rebbed in . the mounting should be done as even as possihie to avoid blistering and followed by careful checking and correction
磨砺的注意事项，包卷前应做好梳理机大小滚筒的平准和平衡工作针根妥为刮平，包卷尽可能平伏，第一次磨砺前将高低不平的针尖和针布接合处须加于充分的整修。