查询词典 variation

In this paper,we consider necessary conditions for optional control of second order ordinary differential equation with coefficient control and two point boundary value,thenobtain the inequality of variation.

在这篇文章中，我们考虑控制出现在最高阶系数上二阶常微分方程系统最优控制满足的必要条件，得到了最优控制满足的变分不等式。

The effect of spectra resolution on the detected characteristic absorption structure of gaseous pollutants and the variation of differential cross section of gaseous pollutants with the change of resolution are studied.

主要研究了光谱分辨率对污染气体被检测到的特征吸收结构形状的影响，以及差分吸收截面随分辨率的变化趋势，从而确定了光谱分辨率对污染气体最低可检测浓度的影响，通过研究分辨率与光强的关系，确定了分辨率与信噪比的函数关系式，得出了DOAS测量NO2，O3和SO2的最佳信噪比范围，对多种污染物标准气体进行了同时监测，计算出标准气体在不同光谱分辨率下的测量误差，确定了对NO2，O3和SO2监测的最适用的分辨率范围。

The present paper focuses on the effect of spectral range on the detected characteristic absorption structure of O3, and the variation of differential cross section of O3 with the change in spectral range and the source of interference in different spectral range.

文章主要研究了在不同光谱波段O3特征吸收结构和差分光学厚度的不同，在不同光谱波段O3浓度反演的干扰来源以及影响程度，确定了实际检测时大气消光对不同波段光强的影响，最后通过对多种污染物标准气体进行了同时监测，计算出标准气体在不同光谱分辨率不同O3浓度时的测量误差，确定了对O3的最适用光谱波段范围。

With the combination of the phase operator and differential operator, extrapolating operator adaptable to the variation of lateral velocity is provided.

本文将相移算子与有限差分算子结合，给出了适合横向速度变化的波场延拓算子。

As long as the truck is moving in a straight line, the ring gear, differential gears, and drive axles turn together without variation of speed.

当卡车直线行驶的时候，环形齿轮，差速器齿轮和驱动轴便会无变速的一起转动。

This reflects that the continent is the piece-togrther block of many blocks and the continent was conserved, and evolved and suffered many times tectonic reworking, which made the integrated strength of the lithosphere with apparently differentness and variation in different tectonic units and different location of the same unit.

这也充分反映大陆是多块体的拼合体，长期被保存、演化，遭受多次构造变动使之总体岩石圈综合强度随不同的构造单元与同一单元不同构造部位具有明显的差异和多变，从而也反映了大陆形成、演化成因和结构与组成的特殊性与复杂性，区别于大洋岩石圈。

Thirdly, the chemical diffusivity of oxygen varies with the variation of oxygen content in 〓 materials.

其三，〓材料中氧化学扩散系数是随样品氧含量变化的。

The variation in diglyceride content of the SG removal group was similar to that of the control, but its relative content was higher.

甘油二脂在血液中的含量最高，正常蚕在化蛹初期为23.6％，化蛹5日后增加到49.22％，羽化前下降为33.8％；摘除咽下神经节蚕甘油二脂含量变化与正常蚕相似，但是其相对含量高于正常蚕。

On the basis, the influence of dimensionless apparent permeability variation factor to flow performance has been analyzed.

在此基础上，分析无因次表观渗透率变化系数和边界条件对产量动态的影响。

The author has systematically expounded the characteristics and important standing of fossil dinosaurian eggs , protection and management, investigation and planning, protection and environmental variation to influence the whole world as well as problems and countermeasures in this paper.

该文阐述了豫西南恐龙蛋化石的特征及重要地位、保护与管理、调查与规划、保护与环境变迁对全球的影响以及问题与对策。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。