displacement mark吃水标志displacementn.置换；转位；移动；位移；排水量displacement mutation failure criterion位移突变displacement frequency response function位移频率响应函数displacement-phase space reconstruction相空间重构displacement of ejaculation tract opening射精管开口移位Displacement coefficient of center circle中心圆位移系数displacement-rupture length relationship位移-长度法displacement analysis investigative system位移分析研究系统displacement vibration amplitude transducer位移振幅传感器displacement restraint and connection means位移限制和连接措施Displacement thermal expansion stress range位移热胀应力范围