查询词典 useful time

They rotate and migrate over time, the foam is too soft to provide any useful cushioning and they're not particularly grippy either.

他们旋转和迁移随着时间的推移，泡沫太软提供任何有用的缓冲，但他们并不特别 grippy 也。

At the same time, the research on the new policy which is both full of Chinese characters and suitable to the foreign trade's status in quo is urgently needed. Based on the background of China's new tax refund policy for export carries into being, this article is mainly to analyze the reform contents. And than according to the new policy's performances and influences in recent years, this paper finds some problems existing in it, aims at which some corresponding measures that especially on the share mechanism of the tax refund policy for export and its jurally standardization would be proposed on .By this way, the author hopes those suggestions would be useful to make our country's new tax refund for export works much sounder as well as promoting the innovation of China's foreign trade.

本文主要是从我国新出口退税政策所发生的经济背景和前提出发，对改革的主要内容进行分析，根据近两年来我国新出口退税政策实施的状况，及其对我国的经济所产生的1定影响，发现现阶段我国出口退税政策所出现的在管理体制和结构上的1些问题，并针对这些问题，提出我国的出口退税政策应该在出口退税的分担机制以及法制规范化等方面不断完善的几项具体建议，不断促进我国的外贸体制改革。

But that the reference to delight is wholly different where what gratifies is at the same time called good, is evident from the fact that with the good the question always is whether it is mediately or immediately good, i. e., useful or good in itself; whereas with the agreeable this point can never arise, since the word always means what pleases immediately-and it is just the same with what I call beautiful.

假如我把令人享受的东西同时也称之为善的，那它与愉悦的关系就截然不同，这从下面就可以看出：善总是伴随这样的疑问：是间接的善还是直接的善（是作为手段的善还是自身为善）；但对快适来说完全不可能存在这个问题，因为快适这个词总是指向某种直接令人欢喜的东西（这与我称之为美的东西的情况一样）。

The above-mentioned calculated results show that, the calculation of the NMR spectra of metallorganic compounds by the quantum-chemical calculation programs is feasible. At the same time, we can also discuss the transition of electrons and the effect of substitute groups. This paper will put forward some useful reference for theoretical and experimental researches.

以上计算结果表明，用量子化学方法对金属有机化合物的核磁共振谱进行理论研究是有效的，并育以鼓过计算来讨论其电荷转移与取代基效应，对理论研究和实验研究具有一定的参考价值。

This tells Google about videos on your site that we mightnt otherwise discover, and lets you provide useful information, such as the title or running time of the video.

这就告诉您网站，我们可能未发现的视频谷歌，并让你提供有用的信息，如标题或运行视频的时间。

At the same time, also through folk song festival, Sangzhi Minge Jie, and other major cultural and art activities and the use of traditional folk song festival held duet, the water dragon Dragon Boat Festival, Wu Lei Shan temple, Mao Goose Carnival and other activities, many non-national intangible cultural heritage project Useful and the protection of heritage.

同时还通过举办山歌节、桑植民歌节等大型文艺活动和利用传统节日举办山歌对唱、端午节泼水龙、五雷山庙会、茅古斯狂欢节等活动，使许多民族民间非物质文化遗产项目得到了有益的保护和传承。

At the same time, such protein molecula alterations would be useful to discover the important influence of heme axial ligands on the protein's structure and properties.

为了实现细胞色素b〓的人工设计和分子改造，通过蛋白质工程方法打破这种均衡的六配位结构，创造出可能的底物结合空穴，将可望构建出具有催化活性的新金属蛋白分子。

In 1966, Ross solved the equation of symmetrical free vibration and got six matching solution, but he believed that it is impossible to find a solution which is useful in everywhere. In 1979, Goldenveizer printed a monography in which the uniformly valid representations of curved solution were published, but the representations of membrane solution were still not found. In 1988, Ruo-jing Zhang published the uniformly valid representation of six solutions for symmetrical free vibration and eight solutions for dissymmetrical free vibration for the first time.

但却碰到巨大困难。1966年，Ross给出了轴对称振动的6个匹配解，但却认为不可能求出全域一致有效解。1979年，Gol&denveizer等出版专著，给出了弯曲解的全域一致有效表达式，但仍然没有得到6个解中奇异薄膜解的全域一致有效表达式。1988年，张若京在其博士论文中第一次给出了轴对称6个解和非轴对称8个解的全部&全域一致有效表达式。

In conclusion, real-time US is a useful and reliable modality in detecting periportal vessels and differentiating PPCC from the hepatic artery.

实时间超音波对傍门静脉血管的侦测及鉴别傍门静脉侧枝循环与肝动脉，是有用且可信赖的工具。

Femtosecond time-resolved studies using fluorescence depletion spectroscopy were performed on the vibrational relaxation; orientational relaxation and the intermolecular energy transfer of dye molecules in solutions under different conditions. The correlation of such ultrafast process with the system temperature and property of solvents is analyzed, which is useful for the further study about the ultrafast process of DNA, protein and other biological molecules, such as intra- and intermolecular electron, proton and energy transfer and photoisomerization.

本文的主要内容是利用飞秒时间分辨荧光亏蚀光谱探测技术对液相体系中的染料大分子在不同条件下的激发态振动弛豫、取向弛豫和分子间碰撞传能等超快动力学过程进行了研究，分析得到了这些超快过程与体系温度和溶剂性质之间的关系，同时为进一步研究DNA、蛋白质等生物分子体系的电子转移、质子转移、能量传递以及光致异构化等反应过程打下了基础。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。