气流

The rotating turbo in the powder concentrator will make the coarse materials return to the mill and reground, while the fineness will mix with the air and go into the cyclone and be discharged the discharge valve which is in the bottom of it. The air which mixed with very little fineness will be purified by impulse duster and discharged by blower and muffler.

选粉机内旋转的涡轮使粗颗粒物料回落重磨，细粉则随气流进入旋风集粉器并由其下部的卸料阀排出即为成品，而带有少量细粉尘的气流则经过脉冲除尘器净化后通过风机和消声器排出。

To reveal aft end internal flow feature of a solid rocket motor with submerged nozzle, a two dimension cold flow test model with rectangular channel was designed The cold gas simulation was based on geometric similarity and aerodynamic analogy Mean and fluctuating velocity field was measured using phase doppler particle analyzer It showed that the flow separates at upstream of the submerged nozzle and reattaches on the tip of the nozzle nose A relatively steady recirculation zone formed in...

为了揭示含潜入喷管的固体火箭发动机尾部流动特征，按照几何相近和气动相似原则设计了通道为矩形的二维冷流实验模型，利用相位多普勒粒子分析仪对燃烧室尾部气流的时均速度和湍流脉动速度进行了测量。实验结果表明气流在潜入喷管入口上游发生分离，再附点位于喷管前端部外侧，背壁空腔内形成一个较为稳定的回流区，流场的轴向和横向湍流强度都比较大

Its main equipments are 8 sets of carding machines, 21 sets of open-end spinning machines, one rope dyeing productive line, 3 flaky dyeing productive line, 96 sets of air-jet looms, 304 sets of rapiers, 398 sets of sewing machines, and other advanced auxiliary equipments, which are all imported from abroad.

主要设备从国外引进，现有清钢联8套、德国气流纺纱机5台、国产气流纺纱机16台、束状染色生产线1条、片状染色生产线3条、喷气织机96台、剑杆织机304台、缝纫设备398台套及其他先进的配套辅助设备。

The power of Electric Super Low-Volume Sprayer is alternating current of 220 volt.

电动超低容量喷雾器使用220V交流电，高频、高速、电机旋转带动风叶产生高速气流，将药液送到喷管与产生的高速气流会合，将药液雾化成极小的微粒。

At the same time, the gas flow acting on the keyhole is simulated by finite element method. The gas flow fields of pneumatic circumferential motion and pressure distribution nephograms around and in the keyhole are obtained. Analysis shows that when plasma is blown backwards i.e., in direction towards the trailing edge of the weld pool, plasma can be eliminated better.

利用有限元法对激光焊接时保护气体在小孔内部和表面气流状况进行了数值模拟，通过对不同焊接条件下模拟形成的小孔气动扰流的气流场和压力分布云图的分析，解释了采用逆向侧吹保护气体吹除等离子体的方法，可以更有效地抑制等离子体云的产生，防止小孔塌陷，有利于维持小孔的稳定性。

In fact, the air flowing across the top an airplane wing is at a lower pressure than the air underneath.

实际上，飞机机翼上方的气流的压力要比其下方的气流压力低。

But the turbine flow classifier used widely in industry can not be satisfied with the requirements of high quality Sn-Pb welding powder.

工业上广泛使用的涡轮式气流分级机，由于内部有高速旋转的转子，使粉体分级时热运动加剧，增加了粉体氧含量，因此粉体品质难以得到保证，这是涡轮式气流分级机在高品质Sn-Pb焊粉分级应用中的最大技术瓶颈。

So we would start with the air flow, we would then build the vocal fold closure onto that.

那么，我们首先练习控制气流，吸气后将声襞在气流上方关闭。

The temperature of flue gas out of air preheater in boiler is normally about 120～180℃, the flue gas enter the absorb tower from the bottom via pre-deduster and is accelerated by venturi tube at the bottom of absorb tower, then is taken to circulating fluid bed. The materials are in the circulating fluid bed, due to the effect of flow, the gas-phase and solid-phase generate fierce turbulence and combination and are fully contacted, then form polymers constantly during the ascending and return downward, while the polymers are constantly disassembled during fierce turbulence and elevated by airflow, which makes the slip velocity between gas and solid reach the tenfold times of single slip velocity.

首先从锅炉的空气预热器出来的烟气温度一般为120～180℃左右，通过预除尘器后从底部进入吸收塔，然后烟气通过吸收塔底部的文丘里管的加速，进入循环流化床，物料在循环流化床里，气固两相由于气流的作用，产生激烈的湍动与混合，充分接触，在上升的过程中，不断形成聚团物向下返回，而聚团物在激烈湍动中又不断解体重新被气流提升，使得气固间的滑移速度高达单颗粒滑移速度的数十倍。

The working principle is: compressed air into the oil mist from the input device, the vast majority of the output by the competent Road, a small part of the airflow into a pole on the positive direction of the airflow holes a, through the valve into the oil cup 5 c in the upper chamber, so that pressure on the oil surface.

其工作原理是：压缩空气从输入口进入油雾器后，绝大部分经主管道输出，一小部分气流进入立杆1上正对气流方向的小孔a，经截止阀进入储油杯5的上腔c中，使油面受压。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷