崩散性崩陷性溃散性湿陷性退让性压溃性易坍塌性coefficient of collapsibility: 土的物理性质湿陷系数core collapsibility: 砂心崩散性; 型芯溃散性coefficient of collapsibility, δs: 坍陷系数collapsibility grading index: 分级湿陷量collapsibility grading index ss: 崩陷分级指数下载手机词典可随时随地查词查翻译