On overall inspection of interior and exterior of pre-hydrogenating reactor of Shanghai Oil Refinery Factory, large cracks was found on the surface of weld and inside of the weld.
在上海炼油厂预加氢反应器投用前的内外部检验中，发现了大量的焊缝表面裂纹和内部埋藏裂纹。
Thus after testing, an inspection on the overall quality of obtained data should be conducted.
测试完以后，对统计数据的总体质量进行检查。
From some test results about impeller online inspection, the overall error of the presented on-line inspection system is given.
通过叶轮检测实例，系统分析了可能的误差因素，给出了检测系统的整体误差。
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