查询词典 subsonic speed

The theories on pyrolysis and coking and hydrogenation of heavy oil are used to know the liquefaction and gasify and coking of coal. 3. The results of particle feeding in the hot plasma jet (1) By using the cold state of spraying the diesel oil mist transversely in the air flow at the subsonic and ultrasonic speed to imitate the stress condition and motion trace of coal powder in the plasma jet, it shows that with the speed of air flow changed from subsonic speed to ultrasonic speed, the uniformity of mixture between the coal powder with certain speed and air flow becomes worse, mixture length becomes shorter, which agrees with the law of momentum transfer.

三、热等离子体射流中颗粒注入研究的结果(1)利用柴油油雾在亚、超音速气流中横向喷射冷态模拟煤粉在等离子体射流中的受力和运动轨迹，结果表明随着气流速度由亚音速向超音速增加，一定速度的煤粉与气流混合均匀度变差，混和长度增加，符合动量传递规律。

The sample is subjected to primary dispersion by a primary dispersion flow that reaches a critical pressure and a subsonic speed, and the sample is then subjected to a secondary dispersion by a secondary dispersion flow that is different in direction from the primary dispersion flow and that reaches a critical pressure and a subsonic speed.

该试样受到达到临界压力和亚音速的初次分散流的初次分散，然后试样接受与初次分散流方向不同且达到临界压力和亚音速的二次分散流的二次分散。

It flew to the target at an altitude of 40-60 m using a radar altimeter at a high subsonic speed.

导弹以雷达高度计控制在40-60米的高度以高亚音速飞向目标。

The shock wave produces a near-instantaneous deceleration of the flow to subsonic speed.

冲击波产生的近瞬时减速的流量，以亚音速速度。

Based on experimental data,adopting a finite volume method,a numerical simulation method is applied to the three-dimensional flow field about the air-to-surface missiles at high subsonic speed and during the different angle of attack.

三维流场的数值模拟是国外军事技术发达国家在飞行器设计过程中所采用的重要方法。

It could be launched from a depth of 50 m. The P-120 was powered by a solid-fuel sustainer that gave the missile high subsonic speed as it flew at an altitude of 40 m.

SS-N-9能从水下50米发射，它有一个固体火箭发动机，使它能在40米的高度以高亚音速飞行。

The Fe-WC metal ceramics coatings were prepared by subsonic speed flame spraying and plasma spraying and the wear resistance of the two kinds of coatings was studied.

利用亚音速火焰喷涂和等离子喷涂分别制备Fe-WC金属陶瓷涂层，对两种喷涂层的耐磨性进行了研究。

What he envisions is an ellipsoid with tiny wings that he says can take off vertically and move like an alien spaceship, albeit at subsonic speed.

他所设想是极有椭翅膀起飞，他说像一个垂直和举措外国人飞船，不过亚音速速度。

The results show tha,t at a subsonic speed, airplane turbulence increaseswith an increase in flying speed, and that a smaller airplane is affected more fiercely than a bigger one under the same air turbulence and weather condition.

研究表明，在亚音速下，飞机飞行速度增大，飞机颠簸增强；在同样的气象条件和大气湍流强度下，小型飞机的颠簸比大型机剧烈。

With the bell-type soliton movement in supersonic speed and the kink-type soliton movement in subsonic speed the two types of the soliton bound states appear to situate at the bottom and the top of the exciton energy band respectively.

对Bell一型孤子以亚声速＜运动，而Kink一型孤子以超声速运动，它们分别出现在激子能带底部和顶部。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。