contact fatigue的用法和样例：
例句
- The paper analysed contact fatigue performances of vacuum degasification steel and common electric steel.
试验并分析了真空脱气钢和普通电炉钢的接触疲劳性能。 - Results showed that contact fatigue property of carburized gear samples was better than that of nitrided gear samples.
试验结果表明，渗碳处理试样接触疲劳性能优于调质氮化的试样。
