转子转动时会产生紊流，就像快艇的发动机产生的尾迹。
As the rotors turn, they generate turbulence, like the wake of a speedboat motor.
这台发动机由一个进气道，一个燃烧室和一个尾喷管组成。
This engine consists of an inlet, a combustor, and a nozzle .
但由于无尾桨系统要耗费更多的发动机功率，性能表现不好。
But the performance is poor because requires more power from the engine.
尾挂机船装有舷外发动机的船。
尾喷管是发动机的重要部件，其连接采用电子束焊接方法，对质量要求很高。
As an important part of engine, the welding quality of the tail pipe should be ensured when jointing it using the electron beam welding.
首先应用自由尾流分析技术来计算旋翼尾迹和发动机绕排流空间的洗流速度。
First, free wake analysis was carried out to calculate the rotor wake geometry and the downwash around the engine jet space.
同时由于导流体尾迹内部脱落涡强度太低，其脱落频率也不会对发动机低压转子振动特性产生影响。
Moreover, because the intensity of vortex shedding in the wake of the guide vane is too weak, it's frequency has no influence on the vibration characteristics of the low-pressure compressor rotor.
探讨了发动机功率、空速、飞行高度等因素对尾桨故障试飞的影响。
It investigates influence of the factors such as engine power, airspeed and flight altitude on the tail rotor failure flight test.
本研究对具有固定、连续可调进气道和尾喷管的冲压发动机性能进行了计算和比较。
The ramjet performance is calculated and compared with fixed and continuous adjustable structure intake and nozzle in this paper.
该文以单兵火箭冲击射流流场为研究对象，采用数值模拟技术，对定向器管尾附近区域的燃气流场进行了数值计算，给出了发动机工作早期阶段冲击射流噪声场形成过程的计算结果。
Taking the impact jet flow field of individual rocket as research object, this paper calculates the jet flow field near the back of the launching tube by using the numerical simulation method.
在双轴式涡轮喷气发动机中，及级涡轮导向器面积和尾喷口面积匹配关系影响到发动机工作稳定性、可靠性和性能。
The stability, reliability and performance of two spool turbojet engine will be affected by the matching correlation between 1st and 2nd turbine nozzle areas and engine nozzle area.
喷气发动机运转时，前端的风扇吸入空气； 空气经过压缩后与燃油一道被点燃；高温的燃气迅速膨胀，咆哮着冲出尾喷管。
When a jet engine is running, a fan at the front draws in air, which is then compressed and burned with fuel to produce hot, rapidly expanding gases which roar out of the back.
第八名：贝尔uh - 1IROQUOIS(惠)是一种军用直升机搭载单涡轮轴发动机，具有双桨叶主旋翼和尾桨。
Number 8. BELL UH-1 IROQUOIS (HUEY) is a military helicopter powered by a single turboshaft engine, with a two-bladed main rotor and tail rotor.
第八名：贝尔uh - 1IROQUOIS(惠)是一种军用直升机搭载单涡轮轴发动机，具有双桨叶主旋翼和尾桨。
Number 8. BELL UH-1 IROQUOIS (HUEY) is a military helicopter powered by a single turboshaft engine, with a two-bladed main rotor and tail rotor.
应用推荐