The early pioneers of aviation often used aeroplane timber from spruce trees for their aircraft frames.

The wings of an aeroplane require strong and lightweight timber for construction.

飞机的机翼需要使用强度高而重量轻的木材来进行建造。

Rotary air engine rotary piston engine of trochoidal type

旋转式热空气发动机

Numerical simulation of the compressed air engine system

压缩空气发动机系统的数值模拟

Precision measurement of blade wall thickness along the common normal of inner and exterior surfaces is required to guarantee the reliability of air engine.

为保障航空发动机的可靠性，要求精确测量发动机叶片不同界面处的内、外表面法线方向的厚度。

Study on wear particle size distribution of air engine with its application to wear monitoring

发动机磨粒统计分布规律与磨损状态监测研究

After introducing the principle, characteristics, domestic and international development conditions of the compressed air engine, the thesis detailedly describes design and initial experiments of the compressed air engine system researched in Hefei University of Technology.

本文首先介绍了压缩空气发动机的原理、特点与国内外发展状况，然后详细叙述了合肥工业大学压缩空气发动机系统的设计及初步实验。

Study on System Design and Performance Experiments of Air Powered Engine

气动发动机的系统设计及试验研究

Repair for honeycomb structure of air engine

航空发动机蜂窝结构的修理

Zirconia Powders for Air Engine Coatings

航空发动机用氧化锆喷涂粉末

A new type of electro-hydraulic servo aeroplane engine simulating system and intelligent control

新型电液伺服飞机发动机模拟系统及其智能控制

Repair Technique and its General Situation of Aeroplane Engine Bearing

发动机轴承修理技术及其概况

Ultrasonic Shear Wave Inspection of the Joint Screwed Tube in Aeroplane Engine

某飞机发动机连接螺管的超声横波检测

Materials and application methods of solid lubrication applied to bearings in jet aeroplane engine, liquid propellant rocket, space vehicle, driving mechanism of neuclear reactor, and high temperature bearing are presented.

本文介绍了喷气式飞机发动机轴承、高温轴承、液体燃料火箭轴承、宇宙飞行器轴承及原子能反应堆驱动机构轴承用的固体润滑材料与润滑法。

Ultrasonic testing of rotor blades in the high pressure compressor of aeroplane engine

飞机某型发动机高压压气机转子叶片的超声波检测

This paper deals with the control methods of high power electro-hydraulic speed servo control system used in an aeroplane engine simulating rig.

文中研究了用于飞机发动机地面模拟台的大功率电液速度伺服控制系统的控制方法。

The gas-film sealing technology is a kind of advanced structure for the sealing of the main axis of aeroplane engine.

航空发动机轴间气膜密封技术是一种先进的结构。

Application of RVI on Maintain of Aeroplane Engine

内视镜检测技术在飞机发动机维修上的应用

The characteristic impedance of the coaxial system consisting of a circular outer conductor and an irregular inner conductor

圆形外导体-复杂形状内导体同轴传输线特性阻抗的计算

The inner conductor of the coaxial waveguide has been replaced by the circular waveguide horn.

用圆波导喇叭代替同轴波导喇叭的内导体实现套叠结构。

A New Method of Calculating the Characteristic Impedance of Rectangular Line with Circular Inner Conductor

一种计算具有内圆柱导体矩形线特性阻抗的新方法