短语词组短语block and tackle 滑轮组;滑轮;滑国组block up tackle 反面抢截block k tackle 正面抢截block and tackle system 滑轮组iron block steel tackle block 铁滑车block and tackle tacke block 绳子或其他柔性材料与滑轮相组合的机件side block tackle 侧面铲球 返回 block tackle