短语词组短语endless round belt 环形圆皮带endless -belt conveyor 连续皮带运输机endless grinding belt 循环式研磨带;循环式磨研带;轮回式研磨带endless abrasive belt 环形砂带;详细翻译endless driving belt 循环传动带endless s belt conveyer 环形带式输送机 返回 endless belt