针角 meaning in Chinese

tooth angle

Standard practice for stitches and seams
针角和缝合的标准操作规程
Rolling bearings - combined needle roller bearings - part 2 : needle angular contact ball bearings
滚动轴承.组合式滚针轴承.第2部分:滚针角接触球轴承
Noted n awtg rev inv w / proper description & stitch count tmr . notee manufacture statement is on invoice . sorry i missed it yesterday . thx
知道了，正在等明天带有正确的货描和针角数的发票，注意出口证明加到发票上了，报歉昨天的单据上忘了没有加。谢谢！