gravel layer

常见例句

双语例句

• Melaleuca stone and gravel layer in some scene.
  千层石造景有的层中夹砾石。
• Consequently, the classification should be adjusted according to other engineering geological characteristics of the gravel layer.
  因此需要参考砾石层的其它工程地质特性对场地类别予以调整。
• While the gravel layer is thick, the occurrence and development of the boiling of sand correspond to the model of hemispheric bottom hole which cheek by jaw with upper clay band;
  当砂砾石层较厚时，涌砂的发生、发展符合紧靠上覆粘性土层的半球形井底模型；

权威例句

• Filter material: layer of fine gravel used in slope stabilization structures that allows water to escape and retains soil particles.
  UNESCO: L O S S A R Y
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