查询词典 Under Pressure

Based on the composite bounded reservoir model with two porous media, the Laplace solution of dimensionless pressure distribution under inner boundary condition (considering the wellbore storage and the skin effect) has been studied, and through analyzing the structures and interrelations of Laplace solution, the correlations with usual composite, two porous media and homogeneous reservoir pressure distribution have been found.

针对双孔介质复合封闭储层模型，研究了两种内边界条件(是否考虑井筒储存和表皮效应)下的变流率问题的无因次内、外区储层压力分布的Laplace空间解，在深入剖析了解的结构和相互联系的基础上，找出了它与常见的复合、双孔、均质储层压力分布间的相互关系。

This paper analyzes mid-pressure gas injectors of LPG/air mixture with thermodynamic principle using the law of conservation of momentum, and establishes characteristic equation of mid-pressure gas injectors under the optimum conditions.

根据动量守恒原理，对液化石油气混空气中压引射器进行热力学分析，并建立了最佳结构条件下中压燃气引射器特性方程。

This paper analyzes mid-pressure gas injector s of LPG/air mixture with thermodynamic principle using the law of conservation of momentum, and establishes characteristic equation of mid-pressure gas injector s under the optimum conditions.

根据动量守恒原理，对液化石油气混空气中压引射器进行热力学分析，并建立了最佳结构条件下中压燃气引射器特性方程。

ABSTRACT This paper analyzes mid-pressure gas injectors of LPG/air mixture with thermodynamic principle using the law of conservation of momentum, and establishes characteristic equation of mid-pressure gas injectors under the optimum conditions.

根据动量守恒原理，对液化石油气混空气中压引射器进行热力学分析，并建立了最佳结构条件下中压燃气引射器特性方程。

In this paper the stress analysis solution of parallel circular tunnels in elastic ground under any coefficient of lateral pressure is derived, and the stress field and displacement field of parallel circular opening subjected to continuous boundary stresses are first solved, and then the ground pressure and the internal force in lining are obtained, using the displacement compatibility equation between linin...

先求得连续洞周边界应力条件下双圆形洞室的应力场和位移场；再利用衬砌和围岩界面位移协调方程，获得平行圆形隧道的地层压力和衬砌内力公式，并可考虑开挖面的三维效应和洞室自由位移等因素。根据结论公式，对隧道间距、地层性质、衬砌厚度等诸因素进行了讨论，得到了单因素的一般规律，在此基础上，提出了平行圆形隧道最小间距的近似方法，并在某工程中予以应用，得到了满意的结果。本应力分析方法在平行圆形隧道的设计和施工中供作参考。

Under partial load conditions the draft tube 3D simulation results showed that the climax of pressure fluctuation of draft tube vortex incepted at the underside of cone part closed by bend and the frequency of the pressure fluctuation accorded with times frequency rule very well.

部分负荷工况下尾水管内三维非定常计算结果表明，尾水管涡带压力脉动最大发生在直锥段下面靠近弯肘段，并且脉动频率符合实际的倍频规律，从而验证了简化公式的正确性。

Caused by the brake disc brake on back wheel should not have four kinds of spaces possible: First, the foot brake 5 exhaust inlets, high pressure gas instinct Pai people the atmosphere, caused by gas-liquid master cylinder should not spring back to place, cause the system Oil will move the brake disc brake wheel cylinder piston top dead can not come back to places; are gas-liquid two disc brake master cylinder to the tubing plug, resulting in brake wheel cylinder piston can not come back to places; are three master cylinder of gas-liquid Can not spring back to their own spaces, brake fluid under high pressure gas, liquid should not return to the master cylinder reservoir chamber, resulting in brake wheel cylinder piston can not come back to places; are four wheel disc brake piston brake system because of moving fluid dirty or rusty Pistons Can not Back-bit card dead.

造成盘式制动器上的制动分泵不能回位有4种可能：一是脚制动阀5的排气口堵塞，高压气体本能排人大气，造成气液总泵的弹簧不能回位，导致制动油将盘式制动器的制动分泵活塞顶死而不能回位；二是气液总泵至盘式制动器的油管堵塞，造成制动分泵活塞不能回位；三是气液总泵的弹簧本身不能回位，制动液在高压气体作用下，不能回到气液总泵的储油室，从而造成制动分泵活塞不能回位；四是盘式制动器制动分泵活塞由于制动液太脏或活塞生锈卡死而不能回位。

Caused by disc brake on the brake Wheel Cylinder could not return to places 4 possible: First, 5 foot brake valve exhaust port blocking, high-pressure gas instinct platoon atmosphere, caused by gas-liquid master cylinder of the spring could not return to place, resulting in the system move oil, brake disc brake Wheel Cylinder Piston top dead and could not return to places; second is to the disc brake master cylinder gas-liquid pipeline blockage, resulting in brake Cylinder piston can not return to place; third master cylinder of the gas-liquid Spring itself can not return to position, brake fluid under high pressure gas can not return Axial pump to gas-liquid master cylinder reservoir chamber, resulting in brake Cylinder piston can not return to places; Fourth Wheel Cylinder piston disc brake system, due to moving fluid dirty or rusty card dead and can not return to the piston position.

造成盘式制动器上的制动分泵不能回位有4种可能：一是脚制动阀5的排气口堵塞，高压气体本能排人大气，造成气液总泵的弹簧不能回位，导致制动油将盘式制动器的制动分泵活塞顶死而不能回位；二是气液总泵至盘式制动器的油管堵塞，造成制动分泵活塞不能回位；三是气液总泵的弹簧本身不能回位，制动液在高压气体作用下，不能回到气液总泵的储油室，从而造成制动分泵活塞不能回位；四是盘式制动器制动分泵活塞由于制动液太脏或活塞生锈卡死而不能回位。

To exam the validity of the Bloch-Grüneisen formula at megabar pressures, we use the electrical conductivity data point of ε-iron at relatively low pressure (～40GPa) reported by Keeler as a reference point, a formula for calculating the conductivity of the ε-iron under high-pressure and temperature was deduced via Bloch-Grüneisen,where v is specific volume , T is temperature and σ is electrical conductivity .

为了检验Bloch-Grüneisen公式在兆巴压力冲击压缩下的有效性，本文取Keeler在较低压力下ε相区的一个电导率数据作为参考点，得到了Bloch-Grüneisen公式关于ε-铁在高温高压下电导率的一个解析表达式：σ=〓，这里，比容v的单位是cm〓/g，温度T的单位是K，电导率σ的单位是Ω〓cm〓。

In the exploration enterprise internationalization's developing process the afterheat excess pressure recycling use which serves under somebody's banner (afterheat electricity generation excess pressure use and so on) the construction energy conservation transformation (wall energy conservation transformation applies LOW-E midheaven glass glass pastes transformations and so on membrane uses plate pile technology and so on) the central air conditioning energy conservation transformation technology (cooling tower energy conservation transformation ice accumulation of cold technology source water source air conditioning technology Leng Meibeng cooled pump transformation and so on) three big prop energy conservation industry to be coquettish in respective domain each collar has won the global prestige and the oral traditions; The Group devotes for a long time to the new building materials the tidal current science and technology research the development passed the BSI IS09001 authentication becomes the world three big glass function membrane core manufacture manufacturer is the present global glass pastes one of membrane service industry largest scale enterprises.

ACER位于美丽的加拿大蒙特利尔市。是全球新型建材知名企业，集团在全世界范围内拥有 6400多名员工，以及数十家实力相当的亲密合作伙伴，为全球70多个国家提供一流服务。在探索企业国际化的发展过程中，旗下的余热余压回收利用建筑节能改造（墙体节能改造，应用LOW-E中空玻璃，玻璃贴膜等改造，采用支盘桩技术等），中央空调节能改造技术（冷却塔节能改造、冰蓄冷技术、地源水源空调技术、冷媒泵冷却泵改造等）三大支柱性节能型产业在各自领域各领风骚，赢得了全球性的声誉和口碑；集团公司长期致力于新型建材、潮流科技的研究、开发，通过了BSI的IS09001认证，成为世界三大玻璃功能膜核心制造厂商，是目前全球玻璃贴膜服务行业最具规模的企业之一。

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。