河谷开凿作用的英文

• circumvallation

• 河谷    river valley
• 开凿    dig; cut; cutting
• 作用    act on; affect
• 冰凿作用    ice gouge
• 朱巴河谷开发部长    juba valley development minister; minister of juba valley development
• 印度电力和河谷开发杂志    indian journal of power and river valley developme
• 开凿    dig; cut; cutting 开凿隧道 cut a tunnel; 开凿运河 dig a canal
• 圣弗朗西斯科河谷开发公司    covale; desenvolvimento do vale do sao francisco companhia de; desenvolvimento do vale do sao francisco, companhia de
• 河谷加长作用    valley lengthening
• 开凿机    excavator
• 开凿者    excavator
• 河谷    river valley◇河谷地貌 river valley geomorgy
• 断陷缝；裂谷开口    rift opening
• 井颈开凿    collar excavation
• 井筒开凿机    shaft sinking machine; shaft-sinking machine; sinking machine
• 开凿导洞    head driving
• 开凿底板    lift the floor
• 开凿洞穴    ripping
• 开凿工作    cut through
• 开凿阶段    excavation stage
• 开凿井筒    shaft job
• 开凿隧道    cut a tunnel
• 开凿运河    canalization
• 坑道开凿    gallery driving
• 立井开凿    shaft deepening; shaft extension