Pointing . Pointing is a secondarymachining operation consisting of adding points on fastener blanks which were not pointed during the heading operation .
是第二次机械化加工，在顶端加工后，再将紧固件坯料钉端切削。
2
Note that in many cases all of the powder used is present in the finished product, scrap losses will only occur when secondarymachining operations are necessary.
可以看到在很多情况下所有使用的粉末都包含在制成品中，废料损失仅产生于需要辅助机加工时。
3
The backside holes of prior art microphones typically require that a secondarymachining operation be performed on the rear surface of the silicon wafer during fabrication.