压缩机也许允许，但冲床不允许。差别在于速度。

来源: 欲千北于 2022-08-10 19:42:54 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.