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We had to move water by a chain pump because the electric pump had broken down.
抽水机坏了,只好用人工车水.
《现代汉英综合大词典》
Square plate of a chain pump is most widely used mechanical invention, first appeared in China.
方板链泵是一项应用最为广泛的机械发明, 最早出现在中国.
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