查询词典 diffusion air pump

The results show that fuel consumption and running unevenness of three-cylinder internal combustion water pump are higher than those of engine driving pump system while effective thermal efficiency of three-cylinder internal combustion water pump is less than that of engine driving pump system.

并与发动机驱动柱塞泵系统的外特性进行了对比分析，结果表明三缸内燃式水泵的燃油消耗率和运转不均匀度明显低于发动机驱动柱塞泵系统，而有效热效率明显高于发动机驱动柱塞泵系统。

After 5~1/2" casing pipes having been corrupted and punched, Caiyou Wuchang in Zhongyuan oil field carried out well workover with 4" casing pipes, but it is impossible to pump with big pump and the pump setting depth is limited .Consequently, Caiyou Wuchang directly makes 4 casing pipes as lift pipe string without tubing to pump oil.

中原油田采油五厂原5 1/2&套管严重腐蚀穿孔，下4&套管修井作业后，无法在小油管内实现大泵提液，同时限制了下泵深度，因此，直接将小套管作为举升管柱进行抽油。

That is a process which uses steam power with heat pump to increase the pressure in heat pump and then with all the secondary steam of heat pump evaporator made both as heat steam of heat pump evaporator and the first evaporator.

通过对烧碱溶液热泵蒸发工艺的研究，提出了一种用驱动蒸汽将热泵效二次蒸汽全部用热泵增压后同时供给热泵效和第一效蒸发器作加热蒸汽的并列组合式工艺。

Multi-function string which combines hollow rod electric heating, adding hot waste water above pump, adding hot waste water below pump, hot water circulation below pump, using sinker bar below pump, and borehole chemical viscosity reduction has been used selectively according to different production requirement and reservoir conditions.

采用能实现空心杆电加热、泵上掺热污水、泵下掺热污水、泵下热水循环泵上掺入、泵下配置加重杆、井筒化学降粘等多功能综合管柱，适应各种不同生产要求，根据油层条件，选取一种或多种组合、配套。

Centrifugal pump flow rate as a pressure change much, while the volume of pump flow rate as a pressure change was small, and the centrifugal pump shaft power decreases with the head of the law to improve the contrary, the volume of the pump shaft power with the pressure increase and increase.

离心泵流量随压力改变很大，而容积泵流量随压力改变却很小，与离心泵的轴功率随扬程提高而减小的规律相反，容积泵的轴功率随压力的提高而增大。

When proceeding pump testing, we collect a good many parameters, and figure out the pump gross head, pump shaft power, NPSH and other parameters. Different units of those parameters are used in different countries, and sometimes the customer asks for the test data of special media. Making a test of every medium of the same pump is not realistic, and the costs will be increase, so we convert the units of the data, and figure out the testing data according to different customer's special requirements. We reduced costs and got good remarks from the corporation through the application of unit conversion technology.

水泵试验时，要采集诸多参数，并且根据这些参数计算出扬程、轴功率、NPSH等数值，不同国家这些参数采用的单位不同，企业必须能够按照客户要求的单位提供试验数据；并且有时客户要求得到水泵在特殊介质下进行试验得出的试验数据，同一台泵在每种介质下都做一遍试验不太现实，而且会提高企业的生产成本，提出将采集的数据进行单位换算，根据不同国家或者客户的特殊要求求出泵的试验数据，在实际应用中节省了试验成本，得到了企业的好评。

Fire hydrant pumps, spray pumps, distribution lines Fire hydrant pumps, spray pumps, distribution lines Fixed fire-fighting facilities, fire hydrant system, water pressure pump, pressure water spray system, pump, water pump and other fire safety curtain system pressure fire fighting pump is the main equipment for the implementation.

Fire hydrant pumps， spray pumps， distribution lines ；是由上海开泉泵业制造有限公司提供的阀门新闻，中文译文仅供参考上海开泉泵业制造有限公司还生产管道泵排污泵消防泵自吸泵化工泵离心泵深井泵计量泵及液下泵，料浆泵，胶体磨试压泵，卫生泵，更多水泵，欢迎您的选购。

The main work and the originality points of this dissertation could be concluded as the following parts:(1) To analyze systematically the mathematical model of LES of air flow in great space, under the case of isothermal and non-isothermal, as well as the combined action of buoyancy and strain. Some basic problems are studied about the LES application into airflow simulation of great space, such as boundary conditions, spatial difference scheme and time advancing scheme, time step etc., which creates the basis for the LES application to indoor airflow simulation.(2) Both the instantaneous and time averaged flow field of great space with multiple jets under isothermal and non-isothermal cases are explored with large eddy simulation method, and also discussed the dynamic characteristics and the law of fluidflow in the great space.(3) Based on the results of LES of the great space and the Fanger thermal comfort indexes, it is brought forward the concept of the series of dynamic thermal comfort evaluating indexes, which could be divided into thermal comfort index with time averaged properties PD, PPD, PMV, thermal comfort index with instantaneous properties IPD, IPPD, IPMV, and time averaged thermal comfort indexes TAPD, TAPPD, TAPMV, and transient situations time averaged thermal comfort indexes TTAPD, TTAPPD, TTAPMV. The differences among them and the calculation methods are discussed, and the four kinds of indexes are calculated with the thermal comfort index PD as an example.(4) Based on the LES results it is discussed the hot air stratification phenomena in air-conditioned buildings in the case with air supply and return registers on the ceiling and the case on the sidewall. The fundamentals of the hot air stratification are studied and the relations of estimating hot air stratification are brought forward.(5) With the advanced apparatus such as hot wire film anemometer IFA300 and laser particle field anemoscope, corresponding model test and site measurements have been done, which are compared with the simulation results and LES is proved a very promising method in air flow simulation indoor.

本文主要工作既创新点体现在以下几个方面：(1)系统分析了等温、非等温和考虑剪切力与浮升力综合作用的高大空间大涡模拟数学模型，并研究了高大空间大涡模拟在室内气流仿真应用中的一些基本问题，如边界条件、空间离散格式和时间推进格式、时间步长选择等问题，为大涡模拟在室内气流计算中的广泛应用打下了基础；(2)首次用大涡模拟方法研究了高雷诺数下高大空间多射流在等温、非等温情况下的瞬时流场和时均流场分布，并探讨了多射流流场的动态特性和流动规律；(3)基于大涡模拟的动态仿真结果和Fanger的热舒适指标，首次系统地提出了动态热舒适评价指标体系的概念：即基于时间平均参数的热舒适指标PD、PPD、PMV；基于瞬时参数的瞬时热指标IPD、IPPD、IPMV；基于时间平均热舒适指标TAPD、TAPPD、TAPMV；以及沿行动迹线的时间平均热舒适指标TTAPD、TTAPPD、TTAPMV，并分析了四类热舒适指标的差异性和计算方法，还以PD值为例对四类指标分别进行了计算；(4)基于数十种工况下空调房间大涡模拟的结果，研究了空调建筑上送上回和侧送侧回两种情况下热分层现象，并探讨了热分层的基本规律，首次提出了避免热分层现象的判断公式；(5)在暖通空调领域，首次使用IFA300热线风速仪、激光粒子速度场仪等先进设备，完成了与大涡模拟相对应的模型试验，并把实测结果与仿真结果进行了对比，说明LES在室内气流仿真方面是一种很有前景的方法。

U.S. Air Force 36th Air Expeditionary Wing commander, said White, Guam's future military strength will be greatly enhanced, Guam's strategic position is particularly important, according to the U.S. Air Force's plan, in the next 5 years to 10 years, the Air Force is expected to Guam Andersen Air Force Base to invest one billion U.S. dollars to two billion U.S. dollars of funds to expand the size of the base, which also reflects the Anderson Air Force Base in the Pacific region will become the most important U.S. air base.

美空军第36空中远征联队司令怀特表示，关岛未来的军事实力将获得极大增强，关岛的战略地位尤为重要，根据美国空军的计划，在未来5年到10年时间里，空军预计向关岛安德森空军基地投资10亿美元到20亿美元资金，扩展基地的规模，这也反映出安德森空军基地将成为太平洋地区美军最重要的空军基地。

Independent new air renewal system: TBA TOWER filtrates and deeply dehumidifies air in the mansion, sending dry, clean and bright fresh air to the room through independent new air renewal system, thus escaping the danger of emergence of legionnella under normal air-conditioning system, greatly increasing oxygen in the air, cleanness, flux and comfort, elevating the air health quality in the room.

独立新风换气系统：TBA TOWER通过独立新风换气系统对大楼空气进行过滤、深度表冷除湿，送入室内干燥、洁净而舒爽的新鲜空气，避免产生常规空调系统易滋生军团菌的危险，空气含氧量、洁净度、流量及舒适度大大增加，提升室内空气健康品质。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

All this to say that I'm glad filmmaking hasn't become completely ironic. I can enjoy an ironic film as much as the next person, but they usually involve a message of some sort. One that's delivered in a smirkingly clever way that requires little in the way of talent.

所有这些都是说，我很高兴电影制作没有变成完全讽刺艺术，我可以和下一个人一样享受讽刺电影的乐趣，虽然他们经常会被划归到一定级别，技术方面不需要很高的才能。