第三章重点讲的是恒流ups在市电出现故障时如何实现恒流不间断供电的。
Chapter Three explains how the UPS with constant current supply the power, as the electric power is not available.
第五章是对恒大地产集团房地产开发项目风险管理的评价及建议。
The fifth chapter is to the evaluation and suggestion about real estate development project risk management of Evergrande Group.
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