dancer roller是什么意思


中文翻译上下跳动滚轮

网络释义

1)dancer roller,上下跳动滚轮2)Roll-on roll-off (Ro-ro),滚上滚下3)jumper,上下跳动钻孔机4)raising and lowering of bit,钻头上下跳动5)She flounced up and down.,她跳上跳下。6)chattering of rolls,滚筒跳动

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