短寿命区采用四级恒定应力水平的成组试验法，长寿命区采用应力升降试验法。
The grouping test method at four constant stress levels was applied for short life span areas while the stress up and down test method were used for long life span areas.
短寿命区采用四级恒定应力水平的成组试验法，长寿命区采用应力升降试验法。
K... the grouping test method at four classes of constant stress levels was applied for short life-span areas while the stress up-and-down test method was used for long life-span areas.
对动态斜坡法与升降法测试原理优缺点进行了比较，在动态斜坡法测试敏感和钝感型电火工品发火感度试验的基础上，结合与升降法试验结果的对比，对动态斜坡法进行了研究。
By comparing the advantage and disadvantage of ramp current with other methods, ramp current method and up-and-down method are used to test sensitivity of bridge-wire Electrical Initiating Device.
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