火箭发动机

This paper gives an account of the fracture criteria predetermination made for cast or forged heat-resistant alloy or high strength alluminum alloy disk rotors of different structures used in rocket,helicopter and airfreighter gas turbines or marine high speed diesel engine superchargers.

本文叙述了对用于火箭、直升机、运输机的燃气涡轮发动机及船用高速柴油机增压器的锻、铸造耐热合金、高强度铝合金的不同结构轮盘转子破裂准则所作的预先确定；在旋转试验台上进行的轮盘转子破裂试验。

The application of the gas turbine to jet propulsion has avoided the inherent weakness of the rocket and the athodyd, for by the introduction of aturbine-driven compressor a means of producing thrust at low speeds is provided.

应用燃气轮机于喷气推进避免了火箭和冲压喷气发动机固有的弱点，因为通过采用涡轮驱动的压气机提供了低速时产生推力的一种手段。

In fact, the jet propulsion engine, whether rocket, athodyd, or turbo-jet, is a piece of apparatus designed to accelerate a stream of air or gas and to expel it at high velocity.

实际上，喷气推进发动机，无论火箭、冲压喷气、或者涡轮喷气，都是设计成加速空气流或者然气流并将其高速排出的一种装置。当然，如第2章中描述的那样，这样做有不同的方式。

Aim\ To acquired a reasonable critical exhaust throat area ratio used for integrative base bleed and compound rocket engine.

目的 确定整体式底排-火箭复合发动机合理的底排临界面喉比。

A type of reaction propulsion engine to propel rockets in space a stream of positive ions is to a high velocity by an electric field .

推进火箭进入太空的一种反冲力发动机；在电域中正离子作。

Through two methods measuring cutoff thrust and pressure of com - bustion chamber when testing liquid propellant rocket engine on ground , cu - toff impulse as simulated altitude condition is obtained .

本文叙述在地面条件下试验液体火箭发动机时，通过测量发动机后效段推力与测量发动机燃烧室压力两种方法来求得模拟高空后效冲量，并对这两种方法作简单评论。

The research indicates that the structure of the unchoked solid fuel ramrocket is very simple and the performance of the engine is very high even at nondesigned point.

分析计算表明：非壅塞式固体火箭冲压发动机不仅结构简单，且能明显提高发动机在非设计状态时的性能。

The adaptive control characteristics of the fuel-richmass flow of the unchoked ramjet are investigated by means of the direct-pipe testing facility- The resultsshow that the unchoked ramjet is superior to that of choke one.

结果表明，非是塞固体火箭冲压发动机是一种性能优良的冲压发动机。

China already has such segmented solid rocket motor and ramjet capabilities today, but scramjets are a much greater challenge.

中国已经拥有这种分离式火箭助推器和冲压发动机技术，但超音速燃烧冲压发动机是一个更大的挑战。

The types of jet engine, whether ram jet, pulsejet, rocket, gas turbine, turbo/ram jet or turbo-rocket,differ only in the way in which the 'thrust provider', orengine, supplies and converts the energy into powerfor flight.

不同类型的喷气发动机，无论冲压喷气、脉冲喷气、燃气轮机、涡轮/冲压喷气或者涡轮-火箭，其差别仅在于&推力提供者&即发动机供应能量并将能量转换成飞行动力的方式。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新