Ray equation is derived from Fermat's principle in variation form.
本文由费马原理的变分形式，导出光线微分方程。
The earthquakes in high velocity area were mainly occurred in variation belt.
分布在高速区的地震，主要活动在高速区内的速度变异地带。
Stress analysis in variation states at crack tip and notch crown tip is presented.
分析了椭圆孔口端点和裂纹端点处的变动态应力。
The observed process of sediment delivery is similar to that of runoff in variation.
实测输沙量变化过程与实测径流量变化过程相似。
Through decoding "spirit of fugue in variation of symphony", we can see fugue nonesuch in his symphony.
本文通过对贝多芬第三交响曲里“交响变奏中的赋格精神”的解读，感受赋格段技法的典范。
The layout of the metropolitan port in variation backwater zone is studied and some Suggestions are given.
探索主城变动回水区的港区布局问题，并提出建议。
Cytomixis is an important plant cytological phenomenon and it is of great significance in variation and evolution of plants.
细胞融合是一种重要的细胞生物学现象，在植物的变异和物种进化方面具有重要的意义。
Figure 1 shows that the increase in variation is almost entirely due to a heavy upper tail to the distribution of the marks.
图1表明，在变化的增加几乎完全是由于沉重的尾巴上的分布情况的痕迹。
The assembly function constructed in variation analysis plays an important role during evaluation of dimensional quality of an assembly.
误差分析中装配函数的构造在装配体尺寸质量评价中扮演重要的角色。
Changes in sintering technology result in variation in working conditions for an electrical precipitator at the head of sintering machine.
随着烧结生产工艺的改变，机头电除尘器的工况条件也发生了变化，作为大型钢铁企业，排放达标对环保尤为重要。
A new method to solve over-determined geodetic boundary value problem is proposed with the help of minimizing some kinds of functional in variation calculus.
本文借助于变分法中求泛函极小化的方法提出求解超定大地边值问题的新方法。
Then, Lagrange arithmetic operator is applied in variation principle of finite deformation resilience to establish a generalized variation principle of springback.
然后应用拉氏乘子法于有限变形回弹变分原理建立有限变形广义回弹变分原理。
We can see one variation in one input or output data may result in variation of two data in classic DEA models. It increases the difficulty of Sensitivity Analysis.
从经典DEA模型可以看出，若是输入或输出中的某个数据发生变化，那么在单纯形表中，变化的数据实际上是两个，这无疑会加大分析难度。
To discover electrical signals exist with action potential, variation potential, composite potential, oscillatory potential and electrical signals in variation potential etc.
已发现的电信号有动作电波，变异电波，复合电波，振荡电波及波中波等多种类型。
At last, he chose mermaid as symbol. But it was not the mermaid in traditional meaning. It was the mermaid in variation combined with contemporary scenes to be the art symbol.
最后他选择了美人鱼这个符号，然而它不是传统意义上的美人鱼，是变异的，是结合当代的情景的艺术符号。
Much attention was paid on the principle which result in variation of the structure and property. A series of compounds were also particularized that have special valence from high-pressure reaction.
重点阐述了高压合成中引起结构和性能变化的一些基本原理以及由高压反应合成出的一系列具有特殊价态化合物。
In the second variation, called the "vertical archipelago", the village exploits resources in widely dispersed locations, constituting a series of independent production "islands".
第二种变异称为“垂直群岛”，村庄在广泛分散的地点开发资源，构成一系列独立生产的“岛屿”。
One variation on vertical farming that has been developed is to grow plants in stacked trays that move on rails.
垂直农业发展出来的一个变化是，在堆叠的、在轨道上移动的托盘上种植植物。
Information about dietary variation among community members is derived by analyzing trace elements in human bone.
关于社区成员之间饮食变化的信息是通过分析人体骨骼中的微量元素得到的。
It is a global record: there is remarkably little variation in isotope ratios in sedimentary specimens taken from different continental locations.
这是一个全球性的记录：在取自不同大陆位置的沉积标本中，同位素比率的变化非常小。
The survey found a wide variation in the prices charged for canteen food.
这项调查发现不同的餐厅出售食物的价格存在很大的差别。
To further confuse the issue, there is an enormous variation in the amount of sleep people feel happy with.
使这个问题进一步复杂化的是，人们感觉愉快的睡眠时间相差很大。
This variation shows up in the trees growth rings.
这种变化表现在树木的年轮中。
To address this, a variation on the original escapement was invented in 1670, in England.
为了解决这个问题，1670年在英国发明了一种对原来擒纵装置的变体。
National data masks the very large variation in the performance of individual universities.
全国的数据掩盖了个别大学表现的巨大差异。
Chemical analysis of invertebrate prey reveals remarkable variation in nutrient composition among species; even within species, nutrient composition may vary considerably.
对无脊椎动物猎物的化学分析显示，不同物种之间的营养成分存在显著差异；即使在种内，营养成分也可能有很大的差异。
Scientists at the time often depended on the royal courts for patronage. But there was considerable variation in the relationships between the courts and scientists in different countries.
那时候的科学家基本上都依靠皇室提供财力支持。但在不同的国家，皇室和科学家的关系有极大差异。
In California, a lack of genetic variation in the Argentine ant has allowed the species to spread widely.
在加利福尼亚，阿根廷蚂蚁由于缺乏基因变异而得以广泛传播。
In the face of the variation of the virus, not only China but also other countries have to take action to fight against the crisis.
面对病毒变异，不光是中国，其他国家也必须采取行动对抗这次危机。
In the face of the variation of the virus, not only China but also other countries have to take action to fight against the crisis.
面对病毒变异，不光是中国，其他国家也必须采取行动对抗这次危机。
应用推荐