end piece of chain链条/生产线的最后一环guide roll of load suspension device引导进料悬停装置的翻倒damper with rubber gaskets and sealing rings diameters over 200 only用橡胶垫圈作为缓冲阻挡物,只有密封圈的直径超过200sealing rings example of horizontal installation水平装置的密封圈样品 the vibrator is consists of a light-alloy metal base ,fitted with an electromagnet.振动器包括一个轻质合金底座,上面装配着一个电磁转换装置 tension arrangement 伸缩力/张力大小的安排/排列(分布) magnet pack 磁力包 flighted belt 飞出的皮带 drum motor 鼓形马达 steel wear plate 镀钢圆盘 belt direction 皮带传动方向