Therefore, the high-speed railway construction enterprises must carry out the project cost control in order to ensure economic efficiency.
因此，高速铁路施工企业必须进行项目成本控制，才能保证经济效益。
Therefore, it is of great importance to design an ultrasonic detection system with flexibility, high precision, high efficiency and acceptable cost.
因此，如何设计一个适用范围广、精度高、效率高的自动化超声检测系统是一个现实而有意义的课题。
Combustion reactions in a gas turbine are processes of high irreversibility, and therefore of lowe exergy efficiency.
燃气轮机中的燃烧反应是一种高度不可逆的过程，因此效率较低。
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