n.阻碍者；减速器；[化]迟缩剂
After site testing,we find a kind of problem diagnosing criterion for rolling bearings of damageable retarder. 通过现场测试总结并提出了一种易损减速器滚动轴承的故障诊断判据。
Under the condition of not changing current hump yard control and driving type and on the basis of the existing gravity retarder, heavy haul car retarder is developed. 摘要在不改变驼峰调车场控制和传动方式的条件下，以现有重力式减速器为基础，研制重载车辆减速器。
