Results show that the overall technical efficiency of China's telecom industry is relatively low, which mainly results from the pure technical inefficiency;
研究表明，我国电信业整体技术效率较低，纯技术效率低下是造成整体技术效率低下的主要原因；
When evaluating the overall efficiency of an energy project, the technical factors, economic factors and environmental factors should be taken into account.
在评价能源动力工程项目时应该采用综合的评价方法，考虑技术、经济和环境等因素。
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