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This paper analyzed thoroughly the transient electromagnetic field analytic expression in homogeneous half space, discovered that the transient response curve has a characteristic of translational expansion and contraction with the underground conductivity, transmit loop length and observation time. According to that, we proposed a new direct method to calculate full time domain apparent resistivity.

深入分析了均匀半空间中瞬变电磁场的解析表达式，发现瞬变响应曲线随地下电导率、发射回线边长与观测时间具有平移伸缩特性，并据此提出了一种新的直接计算全区视电阻率的方法。

Shadow effect can not be neglected for thermal analysis of spacecraft,Accroding to the angle between solar light and antenna orbit plane and its orbit location,analytical geometry method was used for accurately calculating solar radiation heat flux distribution of reflector surfaces.To analyze the temperature field under heat flux,the formulations of net radiation flux density between two gray elements and the net flux density of gray surface under external thermal flux were deduced.Based on the characteristic of space environment,the nonlinear temperature distribution in transverse direction of reflector shell self radiation were considered,the finite element formulations were given for orthogonal material layered shell by Galerkin method.A layered element including a inner heat source layer was proposed,and the finite element formulation expressed by DOF of the inner heat source layer were put forward with temperature and heat flux boundarys between adjacent layer.

单馈反射面赋形天线是未来星载天线发展的一个重要形式，分析了基于物理光学、几何光学和几何绕射理论的理想反射面辐射场；介绍了基于几何光学的反射面天线赋形方法；针对赋形过程中辐射场的快速分析要求，比较分析了基于物理光学的Fourier-Bessel和Jacobi-Bessel级数展开方法以及GB展开分析方法；利用GB展开快速分析方法在20GHz频率下对0.6m口径的天线进行赋形分析，实现中国大陆的30dB增益覆盖，通过数值计算研究了固定增益期望下的口径尺寸随频率的变化，以及频率为20GHz的不同尺寸天线赋形后的覆盖目标区域最大增益的变化情况。

Methods The whole cases were collected which had occurred in this epidemic. Then the epidemiological and clinical characteristics were analyzed by descriptive epidemiology, compared with the clinical characteristic of previous tickinfected Human granulocytic anaplasmosis.

搜集疫情发生地的全部病例，采用描述性流行病学方法分析疫情的流行病学特征和临床特征，并与以往报道的蜱传"人粒细胞无形体病"临床特征相比较，分析感染的危险因素。

The military-political structure makes the dominant unit alike on structure and function, and sustains the anarchical characteristic of the system.

军事、政治结构使体系内主导单位在结构和功能上具有相似性，并使之支持了体系的无政府特征。

This view of modernity is characteristic of a normative style of cultural critique that is anathema to contemporary technology studies.

关于现代性的这种观点是文化批评的规范风格的特色，是当代与技术研究的诅咒。

Which is NOT an anatomical characteristic of the dog?

这不是一个狗解剖特点？

On this basis, anatomize thoroughly and progressively all sorts of aesthetic characteristic of the gravitation in chi...

在此基础上，从童年生命的生命美、创造美、想象美和人性美四个层面，由表及里，逐步深入剖析童年引力的种种美学表征，从不同角度确立发现童年和理解童年的理论基础。

A style of dancing characteristic of the Andalusian gypsies; vigorous and rhythmic with clapping and stamping of feet.

一种舞蹈形式具有安达卢西亚吉普赛人的特征；通过拍打节奏欢快。

It is summarized and analyzed the strength characteristic of andesite and the principium of destroying rock of roller bit,take andesite for example.

以安山岩为例，总结和分析了安山岩的强度特性以及组合牙轮钻头的破岩机理。

The number of theromosomes per nucleus is characteristic of the species except in aneuploid plants.

除了少数非整倍性的植物，细胞核内染色体的数目是物种的重要特征。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。