反压力

Gas condensate fields are kinds of exceptive and complicated gas field; they assume key economic value because they both produce natural gas and condensate oil; the appearance of retrograde condensation because of the declining of the formation pressure during the development of those fields can make the development of this fields difficult , and because of it ,it is difficulty to improve the percent recovery of condensate oil.

凝析气田是一类极为特殊而复杂的气田；一方面由于能同时采出天然气和凝析油而具有重要的经济价值；另一方面，在开发过程中由于地层压力的降低会出现反凝析的现象，从而影响气藏的最终采收率。

Of Zhejiang commercialize a process to precede, result from rich shorts place is brought live pressure and turn over incentive effect; the goods economy consciousness with the low reform cost that state-owned economy weakness has and relatively grumous; of efficiency of expensive system innovation and tradition of culture of industry and commerce.

浙江的市场化进程之所以领先，源于自然资源匮乏所带来的生存压力与反激励效应；国有经济薄弱所具有的低改革成本与高制度创新效率；较为浓厚的商品经济意识与工商业文化传统。

A series of profile numerical simulation are based on the datas of core flooding experiment, including the homogeneous profile positive rhythm section, the rhythm section, interlining profile, interlayer heterogeneity section, intraformational heterogeneity of reservoir section, the actual reservoir simulation. The the section of displacement mechanism of core flow method and the datas of core flooding experiments take into account, the EOR scheme of later stage is CO2 preslug followed by the N2 slug flooding, at last is the waterflooding or depletion type of drive..

为了进一步分析注CO2／N2段塞驱对扫油效率的影响，在岩芯驱替实验的基础上对N2推进CO2段塞驱进行了均质剖面、正韵律剖面、反韵律剖面、隔层剖面、层间非均质剖面、层内非均质剖面、实际油藏剖面的数值模拟研究，通过对比研究，初步认为高11油田在开发中后期提高采收率技术上可选取在适当高的压力条件下，先注前置CO2段塞驱，后续再注N2段塞顶替驱，然后再转注水或衰竭开采的驱替方式。

The N9-CD is designed for noncontinuous pressure, backsiphonage protection and health hazard applications such as chemical dispensers and hose bibbs.

N9-CD适用于非连续压力、反虹吸保护和健康危害应用场合，如化学物质分配器和软管水龙头。

The good design of this device is very important to accomplish flow control and stability of the aircraft construct. The contour of scarfed reversal nozzle has many discontinuous points and a step at supersonic zone. So it can generate a series of expand waves and shock waves, and accomplished with flows separation and reattach.

斜切反喷管作为导弹常用的推力终止装置，能够可靠地完成发动机与有效载荷的分离，它的设计水平对提高导弹命中精度和武器装备的作战性能尤为重要；超声速开式空腔作为流动控制装置，具有减小阻力、增加燃烧混合、延缓边界层分离等作用，但同时也会带来严重的压力波动和噪声，其合理的设计对流动控制的实现以及飞行器结构的稳定性至关重要。

With the extraction efficiency of rotenone and total substance obtained as estimated index, the technology conditions of extracting rotenone from the leaves of Tephrosia vogelii were investigated by SFE-HPLC method.

采用超临界流体萃取反相高效液相色谱法，以鱼藤酮萃取率和萃取产物总得率为评价指标，研究提出非洲山毛豆 Tephrosia vogelii Hook.f中鱼藤酮的超临界流体萃取较优工艺条件为：萃取物料粒径30目，静态萃取20min，萃取温度45℃，压力27.58MPa，流体总流量30mL/g，萃取前向萃取池中加入3mL甲醇作夹带剂。

We then add boundaries delineated forward/backward facing reflected shock, Mechanical equilibrium, M2=1 and reflected shock strong/weak separating conditions on the (M0,q1) map of shih(2004). This is followed by systematically investigating multiply possible three shock theoretical solutions of steady Mach reflections in perfect triatomic gases. Pressure-deflection shock polar solutions are used to help illustrate different solution behaviors of these theoretical three-shock solutions. M0 is flow Mach no. upstream of incident shock, M1 is flow Mach no. downstream of incident shock, M2 is flow Mach no. downstream of reflected shock,q1 is flow deflection downstream of incident shock.

随后本文由石(2004)论文中加入前后分界、机械平衡、M2=1及强弱分界条件，然后有系统地探讨三原子分子理想气体(r=1.2857 )稳态马赫反射参震波理论多重解之交点及其对应之压力-转折角震波极图解，并建构出此三原子分子理想气体稳态马赫反射流场三震波十阶多项式理论解於(Mo，q1)平面上之解域图，其中M0为入射震波上游流场马赫数，M1为入射震波下游流场马赫数，M2为入射震波下游流场马赫数，q1为入射震波下游流场转折角。

During the World War 2, 70 percent japanese army was hold down by chinese army, chinese people sacrificed much and esae the pressure in european and pacific war field, made an unerased countribution for the victory of world anti-fascist battle.

第二次世界大战期间，中国军队牵制了日本军队70%以上的兵力，中国人民作出了巨大的民族牺牲，缓解了欧州和太平洋战场上日军的压力，为全世界反法西斯战争的最后胜利作出了不可磨灭的贡献。

During World War Two, Chinese army battened down over 70% of Japanese armed forces. Chinese people made a huge sacrifice to relieving the pressure on European and Pacific battle field and made indelible contribution to the final victory of World Anti-fascist War.

第二次世界大战期间，中国军队牵制了日本军队70%以上的兵力，中国人民作出了巨大的民族牺牲，缓解了欧州和太平洋战场上日军的压力，为全世界反法西斯战争的最后胜利作出了不可磨灭的贡献。

The method adopts the basic thought of lateral prediction of reservoir, combine logging and seismic data, builds the nonlinear mapping model of neural network between seismic attributes and sonic logging and then extrapolates sonic curves then predicts formation pressure ahead of bit.

该方法引用储层横向预测的基本思路，将测井与地震相结合，通过建立地震属性与测井声波之间的神经网络非线性映射模型，进而反推井底以下声波曲线并预测地层压力。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。