In the main, a few techniques for containing pollution and some new systems for the exploitation and utilization of new energy sources are being introduced.
重点介绍了几种污染控制技术、新能源开发及新能源利用系统。
In the main, a few techniques for containing pollution and some new systems for the exploitation and utilization of new energy sources are being introduced.
重点介绍了几种污染控制技术、新能源开发及新能源利用系统。
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