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针对我国铁路提速、重载的需要，借鉴国外的发展经验，指出研究滚动抱轴承的必要性，同时介绍滚动抱轴承国产化研制及装车运用情况。
In view of the need of speeding and overloading of railway in our country, drawing lessons from the development experience of foreign countries, it is pointed out that the necessity of rolling bearings is pointed out. At the same time, we introduce the research and application of roller bearings.