A.淤泥和淤泥質(zhì)土 B.普通土 C.堅(jiān)土 D.砂礫堅(jiān)土
A.水加土粒質(zhì)量 B.水質(zhì)量 C.土粒質(zhì)量 D.土粒比重
A.100mm~200mm B.150mm~300mm C.200mm~300mm D.300mm~500mm