Organize the lab staff to perform proficiency and comparison tests according to designated plan.

根据制定的计划组织实验室人员参加能力验证和比对测试。

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The mechanism of oxidation resistent was studied by the comparison tests of single ceramic phase coatings.

通过与单一陶瓷相涂层的对比试验研究了它的抗氧化机理。

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The results obtained from comparison tests with imported catalysts show that the catalyst has higher activity and selectivity.

对比评价表明，自制的催化剂活性及选择性高于进口的液相醛加氢催化剂。

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The researchers studied results from international comparison tests taken by 10-year-olds in 2003.

BBC: Top maths pupils 'fail to keep up with world's best'

The unmarried with poor support looks similar in life satisfaction to the married with poor support, but again, the authors did not report statistical tests for that comparison.

FORBES: Single People: Happy, Healthy, And The Majority

Most of the brands don't have lab tests on the amount of flavanols, so there's no way to make a comparison.

WSJ: Heart-Healthy Chocolate: Dark and Bitter Treat