DTS is a key equipment for data transmission between control centre and signal room, in direct influence to running safety of train operation, and its operation efficiency.

数据传输系统(DTS)是控制中心和信号设备室之间进行数据传输的重要设备，直接影响着整个行车系统的行车安全和运营效率。

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Since the mandrel is the most critical thermal deformation operation tool for the retained mandrel pipe mill (MPM) process, its operation efficiency is decisive to steel tube operational cost.

芯棒是限动芯棒连轧钢管机组中最重要的热变形工具，其使用效果决定着钢管生产成本的高低。

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His operation was going to lose most of its efficiency overnight.

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But as a direct-mail-dependent operation that raises its money mostly from small donors, we could only increase our efficiency percentage by limiting our mailings to the most productive mailing lists.

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