查询词典 first order

The second focal length of the lense is independent of the incident kinetic energy of the electron at the first order approximation.

电子在整个系统中的轨迹，文中并讨论透镜焦点与电子入射位置的关系及透镜的鉴别率。

The first order absorption boundary condition is applied to the outside boundary, which can avoid the error caused by the plane wave assumption.

在外边界上统一应用适合于人工源的一阶吸收边界条件来形成边值问题，可减小基于平面波假设造成的人为截断边界的影响。

For investigating the performance of our method, it has been evaluated to simulate a uniform segment of rectangular waveguide. The more lower fictitious return wave loss, which is lower -10 dB than the one yielded from the first order absorbing boundary condition, is illustrated in our method.

通过对一段均匀直波导的计算，验证该算法比使用一阶吸收边界条件的时域有限元法，虚假剩余反射回波平均要低10dB以上，达到了工程计算的要求。

Our method is applicable for height data which have a continuous first order derivative.

本文所提的方法适用於高程的一阶导数连续之资料。

The content of ofloxacin of main drug was determined with the first order derivative spectrophotometry.

一阶导数光谱法测定氧氟沙星主要的含量。

A new method for the determination of soluble phosphate in water by micro emulsion and the first order derivative spectrophotometry is proposed.

研究了在OP微乳液的作用下，用一阶导数磷钼蓝分光光度法直接测定水中可溶性磷酸盐的最佳条件。

The reciprocal dispersion of the first order spectrum is 29 A/mm.

本文绘出了各带系清晰的分子发射光谱图及认证结果。

After acquiring the ultraviolet absorption spectrum and its first order derivative spectrum distributions of Avermectin B1 by using UV-2401 PC spectrophotometer and spectrum-measuring system,we found that coordinates of the peak A252.2 and the valley A256.8 are not disturbed by the different forms of preparations.

用UV-2401 PC紫外分光光度计及光谱工作站，以1 nm狭缝宽度，2 nm Δλ间隔，在190～400 nm波长范围内快速扫描采集阿维菌素B1紫外吸收光谱，拟合一阶导数光谱发现峰顶A252.2，和峰谷A256.8在波长坐标上的位置不受不同制剂干扰。

By using of the first order shear deformation shell theory, the strain-displacement relationships were presented.

采用Hamilton原理、压电理论和层合板壳的一阶剪切变形板壳理论，推导了压电层合板壳系统的运动方程。

In this paper, the test problem on generalized causal theory is specially studied, as there proved to have good results on generalized causal theory, while there aren't any on general first order theory.

本文特别研究了扩展的因果理论中的测试问题，因为在扩展的因果理论上能够证明有比较好的结果，而在一般的一阶理论上得不到这一结果。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。