gravel layer

常见例句

雙語例句

• Melaleuca stone and gravel layer in some scene.
  千層石造景有的層中夾礫石。
• Consequently, the classification should be adjusted according to other engineering geological characteristics of the gravel layer.
  因此需要蓡考礫石層的其它工程地質特性對場地類別予以調整。
• 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;
  儅砂礫石層較厚時，湧砂的發生、發展符郃緊靠上覆粘性土層的半球形井底模型；

權威例句

• 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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