Relho雷略RELabbr.能量损失率（=rate of energy loss ）relevaince principle关联原则reliabillty analysis可靠性relieving strategies缓解途径reliability analysis可靠性分析relatiomhip analysis关联分析reliability forecast可信度联想relocation mechanism浮动机构relativistic formula相对论性公式reliability estimate可靠性鉴定relativistic neutron相对论性中子