Honeycomb sealing technology could make steam turbine unit operation safe and economic due to geometric parameters optimization of honeycomb seals when decreasing radial labyrinth clearance.

蜂窝式密封新技术在减小汽封径向间隙的同时，借助于优化密封蜂窝室几何参数显著提高了汽轮机组的安全经济性。

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Mechanical seal with tungsten carbide hard wear-resistant, with durable, wear-resistant characteristics, can pump more than 8000 hours of continuous operation safe.

机械密封采用硬质耐磨碳化钨，具有耐用、耐磨等特点，可以使泵安全连续运行8000小时以上。

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This paper studies how to use software-bus for system integration inside the grid Enterprise on the basis of information system and how to construct monitor system of grid operation safe and economic.

本论文研究了在电网企业中利用软件总线技术在企业内部各信息系统基础上进行系统集成，构建电网安全经济运行监测系统的问题。

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There is no question in my mind that the system of aircraft design, certification and approval for operation is safe.

FORBES: Boeing's Dreamliner Nightmare: Resolution In Sight

"Their mainline operation is safe, " Daly said.

CNN: Experts: Why many air crashes are survivable

The changes have worked well and have not compromised the safe operation of trains.

BBC: Southeastern train staff to be balloted over strikes