photosynthetic character-istics 光合特性
According to the characterr istics of Anqing city, the author advises to use LPG-air mixture for the main gas supply, and simply discusses on the selection of equipment and technology problems.
通过分析安庆市在实施液化气混空气供气条件的基础上，讨论了相关的实施设备、技术问题等。
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