punch unit
打孔装置
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Double roller unit available for long pin or punch grinding.
双滚轮装置可研磨长形射削或冲子。
youdao
A useful siege unit, but it seems to lack any real punch against serious base defenses.
是有效的攻城单位，但是针对结实的城防的时候似乎不大有效。
Vogel changed the rotations, keeping some starters with the second unit to add scoring punch.
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