100 Top energy saving AC drive tips
本文档由 豆芽 分享于2011-02-11 11:23
Climate change is a change in the “average weather”that a region experiences and includes features such astemperature, wind patterns and precipitation. A naturalsystem known as the “greenhouse effect” regulates thetemperature on Earth. As human societies adopt increasinglysophisticated and mechanised lifestyles, the amounts ofheat-trapping gases in the atmosphere have increase..
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君,已阅读到文档的结尾了呢~~