查询词典 elements

Effect of amphetamine and phencyclidine on DNA binding activities of serum response and dyad symmetry elements .

影响安非他明和苯环的DNA结合活动的血清反应和对子对称要素。

This implies that the size of an array of n elements is n times the size of an element.

这意味着一个有 n 个元素的数组的大小为 n 乘以单个元素的大小。

These elements and the deliberate use of anachronistic contemporary slang give the film its quintessentially Chinese character.

这些元素与现代流行语俚语刻意的运用，为这部电影添加了经典的汉语语言元素。

The result was that 153 (85%) of the anaemic children showed a deficiency in either one or two of these elements.

结果显示，贫血组153例(85％)有血清铁、铜、锌单项或两项降低，与对照组比较，差异非常显著(P.01)。

Analogously, when all the elements in the either ... or construction are plural, the verb is plural too

类似地，当所有either…or 结构中的成分都是复数的时候，动词也应用复数

Taking geometry structural analogue method, analysis landscape spatial network structure, visual section form, landscape elements and their arrangement rule, detail characteristics in particular, using landscape planning as the main analytical tool, we analyze and assess the traditional landscape quality in Xitang in a thorough way.

采用几何结构模拟的图示解剖手段，从景观的空间网络结构、视觉断面形态、景观元素及其空间排列方式，尤其是细部特征等，运用景观规划作为分析工具，对古镇西塘的传统景观特质进行了全面的分析和评价。

We may conceive an analysis situs graph, in a spatial on observation is such, observes in addition on spatial or such, what is different, in two spaces is the masculine and feminine elements, saw in the positive spot cloudy, saw in the cloudy spot positive.

我们可以设想一个拓扑图形，在一个空间点上观察是这样的，在另个空间点上观察还是这样的，不同的是，在两个空间是阴阳的，在阳的点看到阴，在阴的点看到阳。

The contents of trace elements of Ag, Cu, Zn, Fe, Pb, Sb and Bi in gold foil were determined directly by ICP-AES method and the gold content of gold foil was calculated. The authors obtained optimal working parameters of the instrument and studied the selections of power in analytic conditions and analytic curve, the optimization of the pressure of nebulizer as well as the influence of lifting capacity of the sample.

摘 要：研究了ICP-AES法直接测定金箔中的Ag、Cu、Zn、Fe、Pb、Sb、Bi微量元素，通过差减法计算出金箔的含金量，确定了仪器最佳工作参数，研究了分析条件中功率的选取、分析线的选择、雾化器压力的优化、样品提升量的影响，并对金箔中Au基体可能存在的干扰等进行了探讨。

With the publication of the Dai Wei Ji Shi Ji, a translation of Loomis' textbook Elements of Analytical Geometry and of the Differential and Integral Calculus (1851), in 1859, the differential and integral calculus was introduced into China.

19世纪后期是中国数学由传统向近现代转化的一个重要时期，微积分是近代数学乃至大部分自然科学的最基础的理论，这个理论是从1859年出版的译著《代微积拾级》中介绍到中国来的。

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。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。