gas and solar heating system
gas and solar heating system
燃气和太阳能供暖系统
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Based on many typical engineering examples of gas and solar heating system, the relationship between the solar collector area and the fabrication cost of solar collection system is gained.
根据多项典型燃气与太阳能联合供热系统工程实例，得到太阳能集热器面积与太阳能集热系统造价间的关系。
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