• 本文从理论试验两个方面研究了筛孔分布

    The weeping rate, weeping distribution and weeping point of a perforated plate are studied theoretically and experimentally.

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  • 主要阐述了路基形成原因分析了路基压区的危害性施工控制工程管理角度详述了消除压区应采取的措施

    The paper mainly introduced the shape cause of subgrade seepage zone, analyzed its hazard and discussed its countermeasures from construction control and management.

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  • 作为套管找方法一种流量法找技术具有其他方法不可替代优势

    As one of the leakage detection methods, the flowmeter has the superiority to the other methods.

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  • 寄生串联电阻及其温度特性进行了详细探讨,计算结果表明源串联电阻给源电流造成衰减温度升高后变得很大。

    The result of calculation indicated that the attenuation of source-drain current caused by the source-drain resistance increased when temperature increased.

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  • 结果30病患累计47个病变股骨头X线检查16个病变股骨头,CT检查诊了5个病变股骨头,MR检查诊断x线、CT检查后诊的5例病变股骨头。

    Results: Of 47 necrotic femoral head in 30 cases, 16 were missed diagnosis by X-ray examination, 5 by CT, and 5 were diagnosed by MRI but missed diagnosis by X-rays and CT.

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  • 明确结肠镜检查中大肠腺诊率腺瘤特征探讨腺瘤诊的相关危险因素

    To investigate the miss rate of adenoma with colonoscopy and assess the features and risk factors for missed diagnosis.

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  • 方法:总结了室间隔缺损残余18其中单纯室间隔缺损术后残余12例.法乐氏四联症术后残余6例.均行二次心脏手术治疗。

    Methods: 18 cases of residual shunt after VSD repair including 12cases of isolated VSD and 6 cases of Tetralogy of Fallot (TOF) were reoperated and analyzed.

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  • 分析了大量缺陷磁场数据,选取了量化缺陷外形磁场特征给出了缺陷外形磁场特征的关系曲线。

    Some features of magnetic flux leakage were used to analyze the length, width, depth of defects and their relationship was given.

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  • 水力特性测试分类制定处理措施基础工作

    Testing the hydraulic characteristics of lost-circulation zone is a basic work in classifying 1ost-circulation zones and laying down the treatment measures.

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  • 水力特性测试分类制定处理措施基础工作

    Testing the hydraulic characteristics of lost-circulation zone is a basic work in classifying 1ost-circulation zones and laying down the treatment measures.

    youdao

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