inertialessadj.无惯性的inertian.惯性；惰性inertia moment of section截面惯性矩inertial coodinate system惯性坐标系inertial reference system惯性参考系inertial vibrating feeder惯性振动给料机inertial guidance systems惯性制导系统inertia micro--switch微型惯性开关inertial instrument error惯性仪表Inertial Measurement Unit惯性测量仪inertial guidance computer惯性制导计算机inertia gravitational wave暴雨增幅