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The working principle,structure features and technical indices of DLS electromagnetic acid leak de- tector are described.

介绍了DLS型电磁式漏酸检测仪的工作原理、结构特点和仪器的技术指标。

Objective: to investigate normal values of the time domain indices of heart rate variability in Chinese adults.

目的：探讨国人心率变异时域分析各项指标的正常值。

According to the comparison of economic indices, the comprehensive mining technology consisting of dragline stripping technology and semi-continuous technology are preferred.

经济指标的对比表明，露天矿宜采用由拉斗铲无运输倒堆工艺与半连续工艺组成的综合开采工艺，即采场上部剥离采用单斗电铲与自移式破碎机的半连续工艺，中部剥离采用拉斗铲无运输倒堆工艺，下部采煤采用由电铲、卡车、破碎机和地下带式输送机构成的半连续工艺。

Regional Landscape dynamics The changing of some landscape pattern indices also showed the urbanization process of the urban-rural ecotone.

区域景观动态城市化的过程对城乡交错带的景观格局特征也有显著的影响，景观格局指数的变化可以体现这种发展过程。

Species richness and abundance indices varied significantly in different types of ectoparasite communities among different hosts.

鼠类体外各寄生虫群落物种丰富度和多度随宿主动物种类不同而变化较大。

The variability of γ-ray sources listed in the third EGRET catalog is studied using three variability indices.

通过数值计算EGRET源的I值和V值，发现这两种光变方法在统计上是一致的。

Finally, the entropy indices were less interfered with by the electrocautery unit during the operation (12% versus 62% for the BIS monitor).

熵指数受术中电刀的干扰较少（与 BIS 监测仪相比分别为12％和62％）。

With the aid of qualitative analysis,the application of the proposed indices will improve the comparability and precision of endemism study in floristics.

结合定性分析，这些指标的应用将增强植物区系研究的可比性，使植物区系特有现象的分析达到更精确的水平。

Dieseal Engine s dynamism and economy,as the impoortant indices of its properties,are determined by the correctness,timeliness and entireness of its combustion Therefore,analysis on factors influencing dieseal Engine s combustion appears to be most importan

柴油机的动力性和经济性是衡量柴油机性能好坏的重要指标，而柴油机的燃烧过程能否正确、及时、完全地进行将直接影响柴油机的动力性和经济性。

Secondly, based on the decomposition of gauge potential and the φ-mapping theory,φ-topological field theory of vector and spinor field is established and the Euler class is quantized by nodal indices of vector field.

作为它在量子力学中的应用，分别给出了自旋为零和自旋为1／2粒子的整数及半整数量子化条件，发现它们仅取决于物理系统的内部对称性。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。