气流

It can block the passage of the air stream out of the mouth and let it go through the nasal cavity.

它可阻碍通过气流的口腔和让它通过鼻腔。

It is used to put through or cut off the air passage in vacuum pipeline.

阀门用于接通或切断真空管路中的气流。

Underneath the rear fuselage a large air scoop aspirated the second unit, which powered a three-bladed propeller mounted behind a cruciform tail.

在机身后部下设置有大型进气口用来吸收十字尾翼后面的三叶螺旋桨气流。

So, it has the particularity and the application value to study the air distribution of the station.

因此，该水电站的气流组织研究自然有其特殊性，也具有颇大的工程应用价值。

So, air distribution study of water station has its particularity and application value.

因此，此类水电站的气流组织研究自然有其特殊性，也具有颇大的应用价值。

Based on the analysis of the forces exerted on particles in air flow, the track equation which describe particles jetted from nozzle in air sampler and formula between the track and design parameters of impactor are obtained.

本文从颗粒在气流中的受力情况分析入手，得到冲击采样器中喷嘴喷出后颗粒的运动轨迹方程以及运动轨迹与采样器切割头设计参数的关系式。

A large range of IRZ and intense fluctuating velocity area around the boundary of IRZ is measured and thought to be important to keep the excellent ignition and combustion characters of the new kind swirl burner. Together with temperature trace method, different structure and operation parameter of the burner are studied in this paper about their effects on turbulent and mixing characters of swirling jet. The structure variation includes different blade angle, use of central gear shape baffle, variable outer length and angle of lean primary air outlet, use of wedge outlet of lean primary air.

采用上述两种测量方法并结合热质比拟温度示踪的方法，本文对径向浓淡旋流煤粉燃烧器喷口结构和气流流动参数的变化对旋流流场的流动、混合、湍流脉动特性的影响进行了深入研究，研究了旋流叶片倾角大小、中心齿型扩锥、淡一次风扩口外伸长度和扩角的变化、淡一次风楔形扩口、直流二次风扩口角度的变化对出口旋转射流流动特性的影响，研究了一次风率和旋流二次风率运行参数变化的影响规律。

A cushion of air is trapped between the wing and the runway and causes an updraught.

在机翼与跑道之间有一个气垫，这就造成了一个向上的气流updraught。

A typical example will be the traditional fan and air-con systems in the home could "talk" to each other to regulate the air flow in the house at the same time lower the effective temperature of a particular space in the home.

一个典型的例子是传统的家庭用电扇和空调系统能彼此"对话"，从而调控房间内的气流，使温度适中而有效率。

So it has important applied significance to design a set of air-cooled system for middle or small power station.

因此，针对中小水电站厂房研究、开发出一种电机冷却气流的组织方法，具有重要的应用意义。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。