特殊用法antiaircraft gunnery assumption1.高射炮兵射击假定measuring-unit assumption1.计量单位的采用rectilinear motion assumption1.(高炮)直线运动假定shallowness assumption1.浅度假定similarity assumption1.相似假定smoothness assumption1.平滑性假设stable monetary unit assumption1.稳定货币单位假定assumption of nearest neighbours1.最近原子的假设