crossrail

Meanwhile Crossrail is essential in order to cope with London's growing population.

同时,横木对应付伦敦不断增长的人口起着重要作用.

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An idea of crossrail and gearbox maintenance and electric system renovation for HD 12.5 planer.

介绍了HD12.5龙门刨床横梁、齿轮箱修理及电气系统改造方案.

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