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- A brief introduction was given to the concept of natural tracer method, the characteristics of temperature and conductance distribution in groundwater, and the theory of heat-source method and conductance method for leakage detection. 摘要简述天然示踪法的概念、地下水温度场和电导场分布特征、热源法原理及电导渗漏测试原理。
- Application of natural tracer method to leakage detection for ash field earth dam 天然示踪法在贮灰场土坝渗漏探测中的应用
- natural tracer method 天然示踪法
- The water temperature is a well natural tracer for studying the behavior of groundwater. 摘要地下水温度场是研究地下水运动的一种良好的天然示踪剂。
- Artificial tracer method has been used to investigate dam leakage problem broadly. 人工示踪方法已在堤坝渗漏探测中得到很多应用。
- By using magnetic tracer method, we can measure the gastro-magnetic field which is declined with time. 用磁性示踪法测出胃磁场随时间的衰减曲线,发现一些胃病患者的衰减曲线具有特异性。
- The pressure distributions of the Francis pump-turbine runner aremeasured in model test and the flow is visualized by using tracer method. 在小型混流式水泵水轮机模型装置上对转轮流道的压力分布进行了实测，并通过流动可视化摄制了翼间流动的图像；
- Grain size trends are identified todelineate sediment transport pathways on the basis of the Gao-Collins model,which are consistent with evidence from natural tracer dispersal patterns. 结合历史资料，用如下方法研究了胶州湾及邻近海区的沉积动力学：（1）以地貌单元完整性和特征距离一致性为依据，将研究区划分为若干小区； 采用Gao-Collins粒径趋势分析模型提取海底沉积物净搬运方向的信息，并寻找天然示踪沉积物方面的证据；
- The connections 0f the cuneiformis nucleus (CnF) with the lower part of brainstem and the spinal cord were studied in rats by using anterograde autoradiographic method and retrograde horseradish peroxidase tracer method. 用HRP法和ARG法研究了大鼠楔形核（CnF）与下位脑干及脊髓之间的传入和传出纤维联系。
- The distributions and characteristics of non-metallic micro-inclusions of GCr15 and SS400 casting slabs in process of BOF-LF-VD-CC were analyzed by metallographic volume ratio method,in virtue of tracer method and electronic microscope. 借助扫描电镜和示踪法,利用金相学体积率法对BOF-LF-VD-CC流程生产的GCr15方坯连铸轴承钢和SS400板坯连铸中碳钢中非金属显微夹杂物的类型、特点、数量和分布进行了分析。
- In the conventional tracer method, the flow velocity is determined by the time for the tracer to cover a certain distance, and an arbitrarily chosen empirical correction coefficient. 示踪法测量结果需采用经验系数修订才能得到水流速度,而经验系数受多种因素的影响,在不同的条件下如何使用,有较大的随意性。
- The paper discussed several perspectives of isotopic tracer method including the development,advantages and disadvantages,the basic operation,applications in animal digestion and metabolism. 近年来,同位素示踪技术得到迅速发展,并广泛应用于农业,对生物领域的研究与发展起到了重要作用。
- High technology microbiological tracer method 高技术微生物示踪研究法
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- It's natural to slack2 off towards the end of a hard day's work. 一天紧张工作快结束的时候有些放松是自然的。
- Many natural materials are becoming scarce. 许多天然原料越来越少。
- Our motherland flows with natural resources. 我们祖国蕴藏着丰富的天然资源。
- Events took their natural course. 事态依自然进程发展。
- She has a natural wave in her hair. 她的头发自然卷曲。
- Magnetism is a natural phenomenon. 磁力是一种自然现象。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
