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- high background level 高本底水平
- Radioactive elements are at the normal background level, causing no deleterious pollution. 环境辐射在正常范围之内，不存在任何人为造成的放射性污染。
- Radioactive elements are at the normal background level,causing no deleterious pollution. 环境辐射在正常范围之内，不存在任何人为造成的放射性污染。
- Recent advances in epidemiological investigation in the high background radiation area of Yangjiang, China. 阳江高天然放射性本底地区流行病学研究近况。
- ResultsIn the HPLC analysis, Radix ophiopogonis decoction could lead to comparatively high background of chromatogram. 结果麦冬水煎液的直接色谱分析会产生较高的色谱曲线背景。
- The Estimation of Doses to the Inhabitants Arising from Natural Radiation Source in the High Background Radiation Area of Yangjiang, China. 天然辐射源致阳江高本底辐射地区居民的剂量估算。
- By using this region for analysis, the high background from the current-carrying part of the plasma is effectively excluded. 使用这一区域来分析，可以排除等离子体电流携带部分的高背景。
- Title： The Estimation of Doses to the Inhabitants Arising from Natural Radiation Source in the High Background Radiation Area of Yangjiang, China. 关键词：天然辐射源;高本底辐射地区;剂量估算;有效剂量;吸收剂量
- The Middle Cambrian Tianpeng Formation has high background value of metallogenetic element, which is the advantageous ore source horizon. 田蓬组地层成矿元素高背景值,为有利之矿源层。
- Objective To examine the pulmonary tuberculosis mortality risk of the residents in high background radiation area (HBRA), Yangjiang, China. 目的探讨天然放射性高本底地区居民肺结核死亡危险。
- There is the high background values of silver in the volcanic terrain of Eastern Fujian, expecially in the volcanic strata of Nanyuan Formation (Upper Jurassic). 福建省东部火山岩地区银的背景含量高，尤其是上侏罗统南园组火山岩地层银含量很高，成矿物质来源丰富。
- A variation trend has been pointed out in this paper that the geochemical background field descends gradually (i.e. high background field exists in the bas... 烃类湿度系数呈现西干东湿的变化趋势。主要含油气盆地地球化学场与地热梯度具有明显的相关性,揭示了两者间的成因关系。
- Abstract：It should be a goal to seek running GC/ECD with high performance, but the difficult problem at high background always make many analysts puzzled. 追求GC/ECD的高灵敏度运行是分析工作者的目标，但是高的测试背景常常成为困扰我们的问题。
- The distance at which the magnetic field from the line becomes indistinguishable from typical background levels differs for different types of lines. 要使输电线产生的电磁场辐射等级和典型的背景电磁辐射等级差不多，这个距离得随输电线的不同而变化。
- As shown by the experimental results, the treatment either with phosphoric acid or by heating with microwave, the interference of high background values was effectively eliminated. 试验结果显示，或用磷酸处理，或经微波加热处理，均能有效消除高背景的干扰。
- SSS-I Type is suitable for the roughing and scavenging of metallic ores and the purification of non-metallic ores due to its high background field and high gradient magnetic field. 采用特殊技术保证转环在转动过程中无步进。此种运行状态会对设备的传动部分（轴承和齿轮）造成很严重的冲击及双向磨损，降低设备的运转率和使用寿命。
- A Study on the Selenium Background Level in the Soils in Guizhou 贵州省土壤硒的背景值研究
- She skirted round the problem of the high cost. 她避而不谈巨额费用问题。
- Men and birds are fain of climbing high. 不论人还是鸟都愿意往高处攀。
- The bird sang high and clearly in the tree. 鸟儿在树上清脆地高歌。
