短語詞組短語block k and tackle 滑輪組chain block and tackle 倒鏈滑車組block and tackle arrangement 起下用滑車系統(tǒng)block and tackle system 滑輪組block -and-tackle 復(fù)滑車;滑車組block and tackle tacke block 繩子或其他柔性材料與滑輪相組合的機(jī)件chain and tackle block 鏈條起重滑車 返回 block and tackle