查询词典 ducted

When the gas generator is loaded by fuel rich propellant with high exponent, the unchoked ducted rocket can almost be worke...

贫氧推进剂的燃速压强指数越高，非壅塞固体火箭冲压发动机燃气流量的自适应调节能力越强。

The altitude characteristics and velocity characteristics of three types of solid ducted rocket, which are choked solid ramrocket with fixed mass flow rate of fuelrich gas generator, unchoked one and the one working under fixed mass ratio of air to fuel, were numerically studied.

通过数值计算，分析了燃气流量固定的壅塞式固体火箭冲压发动机、等空燃比工作的固体火箭冲压发动机和非壅塞固体火箭冲压发动机的高度特性和速度特性。

The burning rates of the GAP/TMO fuel-rich propellants were measured by use of the pipe-connected unchoked ducted rocket testing facility.

采用直联式非壅塞固体火箭冲压发动机法，测定了GAP贫氧推进剂的低压燃速。

Solid ducted rocket ; choked ; unchoked ; operating characteristics

固体火箭冲压发动机；壅塞；非壅塞；工作特性

A type of high-performance fuel-rich propellant for the unchoked ducted rocket has been developed. The burning rates of the fuel-rich propellant are greater then 2mm/s at 0.5MPa, the greatest one is up to 4. 05mm/s. The burning-rate exponent is greater than 0.5, the highest one reaches 0.58. The fuel-rich propellant grain can combust steadily in the gas generator at 0.226MPa. The uniaxial mechanical properties and the processability of the fuel-rich propellant are good.

研制了一类用于非壅塞固体火箭冲压发动机的高性能铝镁贫氧推进剂：0.5MPa下燃速高于2mm/s，最高者达4.05mm/s；燃速压强指数高于0.5，最高者达0.58；直连式实验时，在0.226MPa下燃烧稳定；具有良好的力学性能和工艺性能。

A new kind of high-performance fuel-rich propellant, which is used for the unchoked solid ducted rocket, has been developed.

详细

This analysis, which considers approximately the influence exerted on the downstream by the upsteam in the nozzle-rudder configuration, is based on the theoretical results of the ducted propeller.

分析基于导管螺旋桨的理论结果，并近似地考虑导管一舵系装置中上游对下游的影响。

Piasecki says both objectives were met with a 47 percent speed increase on the same power and up to 50 percent lower vibration because lift and thrust is off-loaded from the rotor to the wing and Vectored Thrust Ducted Propeller.

皮亚塞茨基说，这两个目标是会见了百分之四十七的速度增加同样的权力和百分之五十，因为较低的振动升降机及主旨是卸货从转子的机翼和矢量推力涵道螺旋桨。

The method developed in this paper can be used in the research field of the Ducted Rocket and fuel-rich propellant, to reduce the experimental cost effetely and shorten the research period greatly.

对于固体冲压发动机和贫氧推进剂的研制来说，本文研究的方法既可有效地降低试验成本，又可大大缩短研制周期，具有一定的工程应用价值。

EC135 unique body design to maximize the use of cabin space, its unique technology and advanced ducted tail rotor of the main propeller drive technology, making the models become the world's quietest helicopter; innovation and expansion of the landing gear to enable are more likely to enter the cabin.

EC135独特的机身设计最大限度地利用了舱内空间，其独特的涵道尾桨技术和先进的主桨传动技术，使得该机型成为世界上噪音最小的直升机；创新和扩大的着陆装置使人更容易进入机舱。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。