piercer的中文翻译是什么意思

Common failure of three - roll piercer in production was studied.

介绍了三辊穿孔机在生产过程中的常见故障和事故.

The armor piercer sends the strength, Is the typical wadding fist sends the strength method.

穿甲弹的发力, 就是典型的绵拳的发力方法的.

The piercing principle of 2 - roll cross - rolling piercer and its application range are discussed.

论述了二辊斜轧锥形辊穿孔机的穿孔原理及其应用范围.