查询词典 backward difference

Then the FPK equation governing the joint probability density of amplitude and phase, the backward Kolmogorov equation governing the conditional reliability function, and the Pontryagin equation governing the mean first passage time are established, respectively.

随机微分方程。在此基础上，建立联合概率密度满足的Fokker-Planck-Kolmogorov方程、条件可靠性函数满足的后向Kolmogorov方程以及平均首次穿越时间满足的Pontryagin方程，分别求解这些方程得到联合概率密度、条件可靠性函数以及平均首次穿越时间。

Increasing risk aversion and disappointment aversion have similar effects on optimal hedge position: increasing it in a backward market and decreasing it in a contango market.

风险厌恶或者失望厌恶程度的提高对最优套期保值头寸的影响方向是一致的，既在市场升水时增加头寸，在市场贴水时减少头寸。

China's productive forces, science and technology, and education is relatively backward, industrialization and modernization still has a long way to go; The urban and rural economic structure has not changed, regional disparities have not reversed the trend, also quite poor; Total population continued to increase, rising proportion of the elderly population, employment and social security pressure; Ecological environment, natural resources and economic and social development have become increasingly conspicuous; we still face in the developed countries in the economic and scientific superiority pressure; economy and other aspects of the management system is not perfect; the building of democratic legal system and ideology and morality, there are still some problems which can not be overlooked.

我国生产力和科技、教育还比较落后，实现工业化和现代化还有很长的路要走；城乡二元经济结构还没有改变，地区差距扩大的趋势尚未扭转，贫困人口还为数不少；人口总量继续增加，老龄人口比重上升，就业和社会保障压力增大；生态环境、自然资源和经济社会发展的矛盾日益突出；我们仍然面临发达国家在经济科技等方面占优势的压力；经济体制和其他方面的管理体制还不完善；民主法制建设和思想道德建设等方面还存在一些不容忽视的问题。

In this paper, we consider the optimal control problem of time-delayed forward-backward stochastic system when control set is convex.

本文研究了在控制集为凸集的情况下带时滞的正倒向随机控制系统的最优控制问题。

But the man , shifting the club from right to left , cooly caught him by the under jaw , at the same time wrenching downward and backward .

那人就把棍子从右手腾到左手，从容不迫地抓住他的下巴，同时向下后方一拧。

In the northern tract of the Scablands, the water cut backward into the rock and caived the Grand Coulee, a gorge twice as high as Niagara's and several times wider.

在疤地的北部，洪水回切人岩石，削刻出大峡谷，有尼亚加拉的两倍高，好几倍宽。

Hand-copied book was the main way in ancient times when the countermark technique was relatively backward .

我们认为，在刻印技术水平不十分发达的古代，手抄仍是《西厢记》文本产生的主要途径之一。

Based on this foundation, the paper puts forward counterplan and suggestions that can guide and support villagers autonomy in some backward village.

并在此基础上，提出对后进村落进行村民自治的引导和支持的对策选择。

My mother told me,when I was baby,I just know how to craw backward.

初中之前，我一直分不清楚姐夫，姑夫和姨夫。

According to some research shows that this part of backward students to enter high crime rate in society.

据一些资料研究表明，这部分后进生进入社会后犯罪率很高。

He has to relate with three women in the movie, and yet remain implicitly faithful to the unseen Lucinda.

让克劳德布里亚里成功地饰演试验了一个难度很大的角色：和三个女人打交道，但还要底下对观众未曾谋面的卢馨达保持忠诚。

The experiment was conducted to study effects of inulin on the growth performance, indices of immune organs and serum immunoglobulin of laying chicklings as well as the performance of inulin which replaced the antibiotics in diets by adding 0.2%, 0.4% and 0.8% of inulin, respectively.

试验旨在通过在蛋用雏鸡日粮中添加0.2%、0.4%和0.8%的菊粉，研究菊粉对蛋雏鸡生长性能、免疫器官指数和血清免疫球蛋白的影响，以及菊粉替代抗生素对蛋雏鸡的应用效果。