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汽車尾氣什么時候能消除？

汽車尾氣什么時候能消除？
問 提問者：網(wǎng)友 2018-03-28
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Alkali industry is the basic raw material industries， cyanide industrial products caustic soda， chlorine， hydrogen downstream products will reach 900 multiple， widely used for light industry， textile， chemical， agricultural， building materials， electric power， electronics， defense， military， metallurgy， food processing economic sectors， Chinas economic development and peoples lives clothing， food， housing， transportation indispensable important basic chemical raw materials. In agriculture， about half the cost of chlorine pesticides， waste alkali products. In vegetables and crops， the use of plastic and is promoting a spray of farmland， irrigation， underground irrigation water conservation， mitigation， and maintaining off projects， the use of corrugated pipes， foam control， porous pipes， Yixingguan to PVC and other materials for production. Moreover， in the production of nitrogen fertilizer， but also the use of cyanide products. In daily life， the main use of all of our urban water disi
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