词语running block
解释移动滑车
词性名词
running block传动滑车详细»
running block〔名词〕动滑车详细»
running block〔名词〕传动滑车详细»
running block动滑车,动滑轮详细»
移动滑车moving block travelling block详细»
移动滑车removable tackle详细»