Reconditioning quality of train directly affects its running safely and on schedule.

车辆检修质量直接影响列车的正点、安全运行。

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Through running safely for several years, the technological measures adopted in this design have proved proper.

多年的运行实践证明，本文的研究方法是正确的，采取的技术措施是有效的。

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Secondly, fault-tolerant control can be regarded as the last line of defence keeping the systems running safely.

其次，容错控制可以看作是保证系统安全运行的最后一道防线。

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The point of this shaggy-dog story is simple: how in the world were my friends supposed to know all the things they needed to know to keep that system running safely and reliably?

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After all, night workers sacrifice their own health to keep our 24-7 society running safely, facing increased risks of cancer, hypertension, heart disease, hormonal disruption, obesity, diabetes, depression and occupational injury due to sleep deficiency and chronic occupational jet lag.

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Police officer Thet Lwin said about 75 children lived in the mosque compound in eastern Yangon, and most escaped safely by running out of a door police knocked open.

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