n.阻礙者；減速器；[化]遲縮劑

After site testing,we find a kind of problem diagnosing criterion for rolling bearings of damageable retarder. 通過現(xiàn)場測試總結并提出了一種易損減速器滾動軸承的故障診斷判據(jù)。

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. 摘要在不改變駝峰調車場控制和傳動方式的條件下，以現(xiàn)有重力式減速器為基礎，研制重載車輛減速器。