Accidental damages may occur on the surface of hollow axles of high-speed railway vehicles in running and this may induce surface cracks.

空心车轴在运用中可能会出现意外损伤而诱发表面裂纹。

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We will work to make major breakthroughs in key technologies for producing vehicles powered by new energy sources, developing high-speed railway transport and saving water in industries.

着力突破新能源汽车、高速轨道交通、工农业节水等一批重大关键技术。

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