gravel
短语词组
- fine gravel [地质]细砾;细砾石
- gravel beds 砾石层的
- gravel mill 卵石磨
- clay gravel 粘土砾石层;粘土砾石
- crushed gravel 压碎砾石;碎砾石
- river gravel 河砾石;河砾
- gravel packing 砾石充填;砾石过滤层
- gravel shoulder 砾石路肩
- filled gravel 填砾
- gravel layer 砾石层;疏水石
- sandy gravel 砂砾石,砂质砾石
- gravel pack 砾石过滤层
- gravel road 碎石路
- sand gravel 砂砾石 返回 gravel