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