stationary fit固定配合,静配合,紧配合stationaryadj.静止的，不动的；稳定的n.驻军stationary ratchet train固定棘轮系stationary point process平稳点过程stationary thrust collar固定推力环stationary contact point固定触点stationary magnetic head静止磁头stationary slewing crane定柱旋臂起重机stationary vertical load垂直静荷载stationary stand grinder固定式砂轮机stationary steel bushing固定钢套stationary knockout grid固定式落砂栅