今天我们进行了分级测试，我感觉做得不是很好。

Today we have a test for the class. I feel not good.

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通过对联锁软件需求规格的分级划分，提出了一种联锁软件分级测试策略。

After the hierarchical classification of CISS (Computer Interlocking Safety-critical Software) requirement specifications, an automatic hierarchical testing strategy is introduced.

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通过对内蒙古自治区主要产毛区所购原毛进行分级测试分析，为纺织厂合理采购、调配使用全区的细羊毛提供了一定的参考依据。

Through classified-testing analysis of fine wool purchased from the main material areas of Inner Mongolia, definite reference can be provided for textile mill to reasonably purchase and use wool.

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