普遍率与严重度关系(I-S 关系)
incidence-severity relationship
车轮高度基准系统
wheel elevation reference assembly
大气数据惯性基准系统
air data system and inertial reference system
惯性基准系统
inertial reference system
基准基床系数
Reference Coefficients of Subgrade Reaction
军用方格基准系统
military grid reference system
三维测控基准系统
three-dimensional surveying control system
时频基准系统
Standard time and frequency system
水平面基准系统
datum system of horizontal plane