排水板间距
spacing of prefabricated drain
排水间距
spacing of drainage ditches
束间间距
distance of adjacent scanning lines
右心室收缩时间间距
systolic time interval of the right ventricle
长排距吹填
Long distance reclamation
动态切空间排列
dynamical tangent space alignment DLTSA
多尺度空间排序
multi-dimensional scaling