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Wooden trays are covered with clay, mixed with water and salt.
木质托盘用混合着水和盐的泥土覆盖。
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By using the method it can be determined whether a clay bed retards the movement of soil water and salt and how large th...
据此可以判断粘土夹层是否阻水阻盐及其阻水阻盐作用效果。
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