查询词典 air action

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。

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苏州国虹空调秉承"顾客永远是第一"的服务理念，共享美的商用空调，格力家用空调，海尔空调，大金空调，三菱空调，新科空调，志高空调，春兰空调，松下空调巨大的产品平台，依靠现有规模且高度统一的服务渠道、专业化的服务队伍，用真诚的行动满足客户的需求。

What successes air power enjoyed against the Vietcong were achieved primarily via BAI and CAS, particularly when air action was synchronized with ground maneuver.13

在空中力量打击越共所取得的成功当中，主要是通过BAI和CAS实现的，特别是在空中行动与地面机动相同步的时候。

Oilless low pressure series air compressors Miniature oilless lubricated air compressors belong to reciprocating, piston, single action and air-cooled portable air compressors, they are designed for the departments which need pure air source and higher environmental requirements.

低压系列空压机全无油润滑空压机的用途和适应范围微型全无油润滑空气压缩机属往复、活塞、单作用、风冷移动式空压机，是为需要气源纯净和环境要求较高的部门而设计的。

Deep grand of far water shade drop in temperature principle: Water shade and fan install the two sides wall in workshop respectively, when fan convulsions, make the air of workshop forms negative pressure, the not saturated air outside forcing workshop sheds the surface with classics water poriferous and wet shade, cause moisture to evaporate absorb a large number of latent heat, drop the temperature of air oneself thereby, below the action of fan, the humid air of these temperature that be redu

深弘远水帘的降冷元理：水帘微风机分别装在车间的双面墙头，风机抽风时，使车间的空气air产生负压，强使车间外未饱满的空气air流经水帘多孔湿滑的外面，引发水份辉发吸收非常多潜热，进而下降空气air本身的温度，在风机的作用以及影晌下，这一些被下降温度的湿滑空气air就涛涛不停的步入车间。

As the frequent rain squalls and low clouds were unfavourable for air action, Phillips resolved to press on.

因为频繁的暴风雨和低云层不利于空军行动，菲利普斯决定向前追赶。

As the frequent rain squalls and low clouds were unfavourable for air action, Phillips resolved

因为频繁的暴风雨和低云层不利于空军行动，菲利普斯决定向前追赶。

The table cores (micro pills, small pills or plain tablets) to be film coated make continuous complicated orbital motion within a closed rotating drum under the action of a streamline guide plate. Controlled by computer and according to the optimum technological parameters, they are automatically sprayed with film coating medium while hot air under a negative pressure is led in from one side of an air distributing pipe at the center of the drum, clean hot air penetrates through the tablet core layers and is discharged after being collected to the other side of the air distributing pipe by a pore duckbill-shapedair paddle embedded in the tablet core layers, so that the film coating medium sprayed on the surface of tablet cores will dry rapidly and evenly, thereby forming a layer of solid, compact, neat and smooth surface film.

工作原则：表芯被filmcoated不断复杂轨道运动在一个封闭的旋转鼓下一个精简行动，并根据指导plate.controlled计算机优化技术参数他们是在自动喷filmcoating中型热风率领下负压是从一旁的空管中心散发的鼓热风清洁片核心层通过渗透和排出后收集到大洋彼岸的空中散发烟斗孔鸭嘴形在片中空中颤抖嵌入式核心层、使中等filmcoating表面喷洒干燥迅速、均匀地将芯片、从而形成一层坚实、紧凑、整齐、表面光滑电影。

The following cases, to go with locator: 1, medium pressure high pressure big time; 2, valve diameter is large Forged Gate, Globe, Check Valves (DN 00); 3, high or low temperature control valve; 4, the action necessary to raise the speed control valve; 5, using standard signal, the operation of non-standard spring when the implementing agency (20 ~ 100KPa spring outside the range); 6, when used for sub-process control; 7, when the valve to achieve the reverse action (air to close each open-type gas conversion); 8, need to change the valve's flow characteristic time (you can change the positioner cam); 9, no spring actuator or piston actuator, the proportion of action to achieve the time; 10, electrical signals to operate pneumatic actuator must Distribution - gas valve positioner.

下列情况下，要配定位器： 1、介质压力高、压差大的时候； 2、调节阀口径大时（DN00）； 3、高温或低温调节阀； 4、需要提高调节阀的动作速度时； 5、用标准信号、操作气动管路截止阀非标准弹簧的执行机构时（20～100KPa以外的弹簧范围）； 6、用于分程控制时； 7、使阀门实现反向动作时（气关式和气开式互相转换）； 8、需要改变阀的流量特性时； 9、无弹簧执行机构或活塞执行机构，要实现比例动作时； 10、用电信号去操作气动执行机构时，必须配电-气阀门定位器。

Short-time exposure with AIR Inhaled Insulin was well tolerated by COPD subjects, showing similar time-exposure and time-action profiles, but with reduced insulin absorption and metabolic effect compared with healthy subjects.

慢性阻塞性肺病患者对AIR 吸入胰岛素的短时间给药耐受良好，表现出相似的给药时间和起效时间，但与健康受试者相比，胰岛素的吸收和代谢效应降低。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。