高压的

A new calculation model is established using the simulating curves presented by Standing and Katz. The coefficients of the correlation are determined by fitting to the data of Standing and Katz Z-factor chart. The results of the two models are compared, the conclusion can be drawn that the error of LXF model is smaller than that of DAK model.

利用两种模型对不同拟对比温度和拟对比压力组合条件下的天然气偏差系数进行了拟合计算，与理论图版值的误差对比显示，在高温高压条件下LXF模型的拟合结果更优，特别是随着拟对比压力的增加，LXF模型的误差不断减小，因此，该模型更适用于高压和超高压条件下天然气偏差系数的工程计算。

As to the work about theory analysis, at first, the paper describes the atomizing and humidifying process of the centrifugal nozzle with firing pin type, high pressure and little aperture and liquid physical properties. Later, combining with the structure characters of this kind of nozzle, the paper studies on the theory of the atomizing and humidifying process by three phases, which is water film forming phase, water film falling into pieces phase, and heat and mass transfer between water and air phase in turn.

理论工作方面，首先描述了撞针型高压小孔径离心式喷嘴的雾化加湿过程和液体的物理性质，然后结合撞针型高压小孔径离心式喷嘴的结构特点，将其雾化加湿过程分三个阶段进行机理上的研究，这三个阶段依次为液膜形成、液膜初次破碎及二次雾化、水与空气的热湿交换。

This can enhance efficiency and competition of tube hydroforming.

本论文的研究为内高压成形工艺在管类零件生产中的应用提供了有效参考和坚实的基础，并为工艺参数的优化提供了基本原则和有效的途径，能够明显提高内高压成形的工作效率和产业竞争力。

Weather patterns are now under the control of Earth's large circulation systems: the belt of subtropical highs near 30° north latitude; the easterly trade winds that occupy the zone south of the highs; and the region of cloudiness that marks the Intertropical Convergence Zone, about 5° north of the equator.

这一段的天气形势处于地球巨大的循环系统控制下：北纬30°附近受副热带高压带控制；向东的信风占据了南高压带；赤道以北大约5°的热带辐合区有较厚的云层。

The research for the mechanism of field plate operation in this paper can offer some theoretic guidance for applying field plate in high voltage MOSFET. Measuring for layout design rule has practical directions to the layout design of high voltage MOSFET and provides basis to setting idiographic parameters of parameterized cells in device model library.

本文对场板工作机理的研究，对高压MOSFET中场板结构的应用具有一定的理论指导作用；版图设计规则的测量对高压MOSFET版图设计具有实际性的指导意义，并为器件模型库中参数化单元的具体参数设定提供了依据。

After this paper analyzes the importance of Green Illumination in the field of energy saving and environmental protection, the disadvantages and advantages of electronic lamp-house productions in both here and abroad is proposed at present. The high-pressured sodium lamp is the challenging production in all of the electrical lamp-house productions .So energy saving of the high-pressured sodium lamp becomes a important part of China Green Illumination.

本文首先在分析"绿色照明计划"在节能及环保领域中的重要性的基础上，对国内外照明电光源系统存在的问题作了分析，指出高压钠灯是众多照明产品中最具发展潜力的电光源产品，而高压钠灯的调光节能技术必将成为"中国绿色照明工程"中重要的一部分。

You can dismiss these niches as "picking up peanuts in front of a steamroller" but when the speed and direction of the steamroller is fairly clear, there are lots of opportunities if you are agile and quick on your toes

您可以解雇这些骨灰龛为"落花生在前面的一高压手段"，但当速度和方向的高压手段是相当明显的，有很多的机会，如果您是敏捷和快速对您的脚趾

Through analysis of the 1999/2000 background field of winter circumfluence, we find that the changes of West Pacific subtropic high and polar vortex are important factors that affect the changes of winter climates characters of our countrys and decay or melt of sea ice in the Bohai Sea .

通过对1999／2000年冬季环流背景资料的分析，发现西太平洋副热带高压和极涡的变化是影响我国冬季天气气候特征变化和渤海海冰生消的重要因素，而副热带高压和极涡等大气活动中心的变化又与赤道东太平洋的厄尔尼诺现象及拉尼娜现象有关。

The background of protective relaying based on travelling wave for transmission lines is introduced and its development at home and aboard is reviewed.

0引言全国高压、超高压输电线路的不断扩建及特高压线路的试建，大容量机组的陆续投运，全国电网的互联对电力系统继电保护的动作速度、可靠性、灵敏度等指标提出了更高的要求。

We have calculated the electronic structure and optical properties of zinc blende structure ZnSe under different high pressure by means of plane wave pseudo-potential methodwith generalized gradient approximationin this paper.The total energy,density of state,energy band structure,and optical absorption and reflection properties under high pressure are calculated.Furthermore,we analyzed the change of electron structure,band structure and optical properties under high pressure using the results of experiment and theory

运用密度泛函理论体系下的平面波赝势和广义梯度近似方法，利用第一性原理计算了不同的压强下ZnSe晶体闪锌矿结构，得到了它的平衡晶格常数、总能量、电子态密度分布、能带结构、光反射与吸收系数等性质，具体讨论了高压下ZnSe的电子结构，并且结合实验结果定性地分析了高压下的光学性质。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。