A bending test has a merit that detection of deformation is relatively easy and a demerit that a stress state is not simple as compared with a compression or tension test.
弯曲试验有着能比较容易地探测变形的优点，缺点是应力状态不象压缩或拉伸试验那样简单。
A kind of method to evaluate and test the tension-compression fatigue strength of gray cast iron was introduced in this paper.
介绍了一种评价与测试灰铸铁铸件的拉压疲劳极限的方法。
Qualify each retaining system independently by the use and abuse tests such as Impact test, Torque and Tension test, or Compression test.
通过使用和滥用测试单独地验证每一个保护系统， 例如冲击测试，扭力测试和拉力测试或压力测试。
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