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《中華人民共和國防沙治沙法》書評 —— 查看此書介紹

jin 2008-9-6 21:37:20

沙漠晝夜溫差大,是否可以在沙漠地區立很多輕石條,利用溫差讓空氣的水分凝結在石條上滴入沙中,可讓植物吸到水分.

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