短語詞組短語roadbed compaction coefficient 路基壓實系數(shù)shale compaction coefficient 頁巖壓實系數(shù)compaction coefficient k 壓實系數(shù)kcoefficient of compaction 夯實系數(shù);壓實系數(shù)coefficient of compaction K 壓實系數(shù)K 返回 compaction coefficient