A comparative analysis is made on the main technical requirement and test method specified in the new standard concerning motorcycle rear mirror.
对摩托车后视镜新标准中关于摩托车后视镜失真率的主要技术要求和测试方法进行了对比分析；
A comparative analysis is made on test pile data from two kinds of similar pile foundations by using the method of connection number in set pair analysis.
运用集对分析中的联系数的方法，对两种类似桩基的试桩资料进行对比分析。
A comparative test between green sand mold casting method and resin sand-coated iron mold casting method was conducted.
介绍了球铁刹车盘的不同铸造工艺，对粘土砂湿型铸造工艺和覆砂铁型铸造工艺进行了试验对比。
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