By improving steel material quality, adopting plastic cage, improving rib structure and using crowned rollers, the life and performance of cylindrical roller bearing can be largely increased.

经改善钢材质量、采用塑料保持架、改进挡边结构及凸度滚子的应用，可使圆柱滚子轴承的寿命和性能大幅度提高。

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Using surface coating of healants, the surfaces of the corroded, impact-crushed and cavitation-eroded equipments were repaired and protected, and the useful life of the equipments can be increased.

通过表面粘涂，对受到腐蚀、冲蚀、气蚀的设备进行表面修补与防护，可提高设备的使用寿命。

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As a kind of life-style disease, the morbidity and mortality of essential hypertension has been increased. The importance of using the current best evidences to direct patients is obviously.

原发性高血压是一种危害人类健康的重要疾病，改变生活方式有助于疾病的治疗。

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