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本文通过对比试验和分析,指出在材质相同的条件下,对钢球进行表面硬化处理,可以提高其额定寿命和中值寿命。附图2幅,表5个。
In this paper, through comparative tests and analysis, it is pointed out that under the same material condition, the steel ball can be hardened to improve its rated life and median life. Figure 2, Table 5.