查询词典 gas-jet

The working principle, system composition and function of EG steam jet pump was introduced, and the energy saving effect and advantages of EG steam jet pump comparing with the existing water steam jet vacuum pump were analyzed.

介绍了乙二醇蒸气喷射泵的工作原理、系统的组成及作用，分析了乙二醇蒸气喷射泵与原有水蒸汽喷射真空泵相比的节能效果和优点。

This paper focused typical sand jet fracturing used in foreign countries and introduced in detail the development of jet structure and connection and its application procedures. The application of two typical sand jet fracturing tools was introduced.

着重介绍了目前国外典型的水力喷砂压裂工具，阐明了国外喷射器结构及其连接方式的发展，国外所使用两种典型工具的结构、作用及其操作步骤，并对这两种井下水力喷砂压裂工具的应用进行了介绍，说明了其适用性。

A typical domestic sand jet fracturing tool is introduced. The basic structure of jet was introduced. The field applications indicate that sand jet fracturing is effective in improving production.

并对国内所使用的典型水力喷砂压裂工具进行了介绍，给出了工具中关键部件喷射器的基本结构，并联系国内现场实际的应用情况，说明了水力喷砂压裂是一种有效的增产技术措施。

"I did not expect the jet in M87 or any other jet powered by accretion onto a black hole to increase in brightness in the way that this jet does," says astronomer Juan Madrid of McMaster University in Hamilton, Ontario, who conducted the Hubble study.

&我无法预测M87核心喷流或者其他由黑洞补充的喷流的增亮行为&，哈勃研究专家组带头人、加拿大安大略省哈密尔顿市麦克马斯特大学的天文学家胡安。

Comparison between the stress of swirling and common jet nozzle tells that the former maximum stress is far larger that the latter. It can explain that the wear of swirling jet nozzle is more severe than common jet nozzle. The way how various parameters effect the wear of the nozzle is carefully studied in the article.

对比了旋转磨料射流喷嘴和普通磨料射流喷嘴的应力情况，结果表明：前者的最大应力远大于后者，这可以很好地解释旋转磨料射流喷嘴比普通射流喷嘴磨损严重的现象。

The force on the jet pipe in the hole jetted is analyzed, and it is indicated that the resistance on the jet pipe is the main factor influencing the feeding of jet pipe.

分析了喷管在喷孔内的受力，指出喷管在喷孔内所受的阻力是影响喷管送进的主要因素，据此调节喷管送进控制液缸控制腔的压力可控制送进速度和限制最大推力。

It firstly did numerical simulation towards pulsed liquid jet pump's throat pipe when it was working on different area ratio, different length of throat pipe, different working situation. Then it analyzed and proposed the optimization length of throat pipe on pulsed liquid jet pump; In chapter 5, it did experimental study on the fundamental performance of steady and pulsed liquid jet pump, then compared the experiment result with numerical simulation result, this approximately agreed with each other.

首次对脉冲液体射流泵在不同面积比、不同喉管长、不同工况下的喉管内部流场进行了数值模拟，分析提出了脉冲液体射流泵的最优喉管长度范围；第五章对恒定、脉冲液体射流泵的基本性能进行了试验研究，对比试验结果和数值模拟结果，二者吻合较好。

Of course, automotive fuel changing from gasoline and diesel into gas fuel is also carried out blazingly everywhere in our country. Because automotive gas-fuel supplying system is yet not self-contained, and now a large of running vehicles by gasoline and diesel are the largest consumers of petroleum and source of pollutants, so vehicles by liquefied fuel being transferred into Gasoline/Gas amphibious-fuel or Diesel-Gas dual-fuel vehicles is the best way of automobile using gas fuel in our country now.

当然，我国各地也兴起了汽车燃料油改气的热潮，由于我国车用气体燃料的供给基础设施建设远未完善，并且目前在用的大量汽、柴油车是我国的石油消耗大户和最重要的污染源之一，所以我国目前最现实的做法是把大量的汽、柴油车改装为气体燃料／汽油两用燃料汽车或气体燃料—柴油双燃料汽车。

The separation action of the gas anchor eliminates the effect of the gas on the subsurface pump and improves the efficiency of the pump; the gravity-type anti-gas device carries out gas-fluid separation by gas-fluid separating principle and chimney stack criterion: while the laser slotted screen pipe ensures the OD of sand in the fluid less than 0.05mm.

闭式气锚的分离作用消除了气体对抽油泵的影响，提高了泵效；重力防气装置利用液气分离原理和高烟囱原理进行液气分离，液流回流时间可达10 min，排气最高压差可达0.2 MPa；经激光割缝筛管过滤后的液体含砂粒外径小于0.05 mm。

In view of practical problem during Sulige gas field development, this paper complete follow study content. Study material balance theory of two district compound gas reservoir. Carry out stress sensitivity experiment on matrix rock and labor created fracture core from Sulige gas field with America Core Company high pressure high temperature flow experimental instrument to study stress sensitivity change rule of different permeability matrix rock and created fracture core at the condition of time and again switch on and off well and different drawdown pressure. Carry out depletion experiment on matrix rock of different permeability serial combination with different kinds of allocation, using double core clamper serial connected experimental apparatus, to study gas well production performance of bi-zonal compound low permeability reservoir during low pressure production stage. At the basis of experimental study, establish single well simulation model to analyze development index infection caused by stress sensibility and production performance infection rule caused by inner formation and outer formation of bi-zonal compound gas reservoir permeability variation while considering stress sensitivity.

针对苏里格低渗气田开发中存在的实际问题，完成以下研究内容；研究了两区复合气藏物质平衡原理；利用美国岩芯公司高温高压流动实验仪，对取自苏里格气田基质岩芯和人工造缝岩芯进行应力敏感实验，研究不同渗透率基质岩芯和造缝岩芯在多次开关井和不同生产压差条件下的应力敏感变化规律；采用双岩芯夹持器串联实验装置，对不同渗透率串联组合的基质岩芯进行各种配产条件下的衰竭实验，研究两区复合的低渗储层气井在低压生产阶段的生产动态特征；在实验研究的基础上，建立单井模拟模型分析储层应力敏感性和非均质性对开发指标的影响，研究考虑应力敏感时两区复合气藏储层中内区和外区渗透率变化对开发动态的影响规律。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。