man-made dams 人造大坝
Hydraulics around man-made dams must be treated with utmost respect regardless of their height or the level of the river.
不管坝有多矮或者水流的级别,人工水坝及其周围的水利工程必需对它们抱以最大限度的注意。
They built small DAMS made of stones to stem rain run-off and to prevent precious topsoil from being washed away.
他们用石头建起堤坝,以免雨水流失,并防止珍贵的表层土壤被雨水冲走。
They build large DAMS to store water in huge man-made lakes.
人们建造了巨大的水坝以把水储存在巨大的人工湖里。
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