A dam placed across a river or canal to raise or divert the water, as for a millrace, or to regulate or measure the flow.
堰,拦坝,挡流坝横截流或运以提高位或转向的坝,如用于推动车,调节或测量流
A dam placed across a river or canal to raise or divert the water, as for a millrace, or to regulate or measure the flow.
堰,拦坝,挡流坝横截流或运以提高位或转向的坝,如用于推动车,调节或测量流
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