通过分析全国日照时数表得出：开环系统在太阳能光伏工程中效率不高而并不适合采用。
The open system is not suitable for adoption in solar photovoltaic engineering because of its inefficiency through analyzing the national sunshine duration table.
通过分析全国日照时数表得出：开环系统在太阳能光伏工程中效率不高而并不适合采用。
The open system is not suitable for adoption in solar photovoltaic engineering because of its inefficiency through analyzing the national sunshine duration table.
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