pulleyn.滑车;滑轮;皮带轮
pulley cheek滑轮侧板
Pulley Group滑轮组
pulley shell皮带轮罩,滑车罩
pulley stile提拉窗滑车槽,吊窗滑车槽,滑车槽
pulley wheel滑轮
pulley blockn.滑轮组
pulley drive皮带轮转动装置
pulley center皮带轮中心距
pulley sheave滑车滑轮
pulley tackle滑车组,复式滑车,起重滑车