The central lines of the glide block and the piston rod can automatically overlapped by the auto adjustment of the oscillating bearing so as to make the running of the glide block stable and flexible.

在剪板工作中，通过关节轴承的自动调节，可自动完成滑块与活塞杆中心线重合，使滑块运行平稳灵活。

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The central London Railway was one of the most successful of these new lines, and was opened in 1900.

于1900年开通的伦敦中央铁路是这些新线路中最成功的一条。

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It will be ready by 20Many countries, especially the ones in Central Asia, Southeast Asia, the Middle East and Eastern Europe, are planning to build high speed rail lines or to improve their railways with the help of China.

许多国家，特别是中亚、东南亚、中东和东欧的国家，正计划在中国的帮助下修建高速铁路或改善他们的铁路。

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Then they persuaded Arrow International, one of the largest manufacturers of central lines, to produce a new central-line kit that had both the drape and chlorhexidine in it.

NEWYORKER: The Checklist

United, which last week signed a flight codesharing (joint marketing and air miles) deal with Swiss International Air Lines on top of its central role in the global Star Alliance, has long identified international routes as one of its best sources of profits.

ECONOMIST: World airlines

On Monday, some commuters en route to central Philadelphia were transferred from rail lines to shuttle buses because of the floods.

CNN: Philly suburbs clean up after weekend floods