displacement mark吃水标志displacementn.置换；转位；移动；位移；排水量displacement- based seismic design method位移设计方法displacement ventilation with cooling ceiling置换通风与冷却顶板displacement observation of deep-hole point深孔基点位移观测displacement solution under concentrated force集中力作用下的位移解displacement-based seismic safety assessment基于位移抗震安全评估displacement of temporomandibular articular disc颞下颌关节盘移位displacement measurement of direction distinguish判向位移测量displacement ventilation air-conditioning system置换通风空调系统