Relfn.雷尔夫RELabbr.能量损失率（=rate of energy loss ）Reliability ratio可信度比reliability desig可靠性设计relining of brakes换闸衬reliability system可靠性系统relieving platform减载平台reliability target可靠性指标Relieving Disaster灾荒救治relocation of line改线reloadable porgram浮动程序relinking required要求再连接