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A method of preparing the size-controllable and uniform capsules or beads by using pin hole with superposed air was proposed.

建立了一种通过气流作用于针头出口处的液滴，来制备比较均一的、可控尺寸微胶囊的方法。

In this paper,a 3-D Adaptive Fuzzy Sliding Mode Guidance law for air to air missiles is proposed.

提出了一种基于自适应模糊滑模控制的空空导弹三维制导律，解决了一般滑模控制中存在的抖振问题。

The Air Ministry wanted a range of 2,150 kilometers (1,340 miles), and so to reduce weight, Arado proposed that the E370 would take off on a wheeled tricycle trolley that would be left behind after take-off, and land on skids at the end of the flight.

尽管U2采用了主起落架，但是机翼在起飞的时候是由一种在起飞后丢弃的，叫做"弹簧脚"的外翼悬臂支架支撑的，同时翼梢还是有用于着陆的滑轮。

To solve the poor economic and dynamic performance at high engine speed, a new crank shaft mechanism of air powered engine was proposed.

为解决高转速下动力与经济性能的下降，提出一种新的气动发动机曲轴连杆机构。

In this paper, the grey system theory forecastin g method to predict the track of air craft of missile target is proposed. Throug h checking the model by use of actual tracking data of aircraft, the results sho w that the accuracy of the model is of very high level.

提出了用灰色系统理论进行飞机、导弹目标的航迹点预测的方法，并利用实际测得的飞机航迹点数据进行了验证，具有很高的精度。

An energy supplying method using air-breathing proton exchange membrane fuel cell was proposed for robot.

提出用空冷型质子交换膜燃料电池堆为机器人驱动电机供给电能。

Based on mechanism and vehicle theories theoretical analysis is pursued and normal driving conditions are put forward. The relations are analyzed between load distribution and power consumption. Mechanical formula is proposed. Furthermore in this paper the theoretical model of the total power consumption is established, and the relations of the total minimized power consumption with the air-cushion pressure and the fan revolution are discussed. The optimum operation point is put forward. The dynamic digital simulation studies are carried out on the operating procedure of the half-track air-cushion vehicle on soft terrain. Mechanical parameters and soil mechanics characteristics affecting vehicle power consumption and riding performance are analyzed. At the same time according to the model formula, the automation control problem is discussed. It is a theoretical instruction for further automation control.

本文还从力学和车辆原理的角度进行了理论分析，推导了半履带式气垫车的需求功率及正常行驶条件，研究了气垫压力和功率消耗之间的关系，提出了力学模型公式；建立了半履带式气垫车总功率消耗的理论模型，研究了最小功率消耗时功率与垫压及表征气垫车行驶状态的各参数的关系，分析了相应的影响因素，并提出了最佳工作状态的定义；同时进行了半履带式气垫车在软地面的行驶过程的动态数字仿真试验研究工作，对影响车辆功率消耗和行驶平顺性的各力学参数和土壤参数进行了分析，得到了各运行状态参数的变化规律，验证了最佳工作状态和最佳垫压的理论，根据力学模型公式对进一步的自动控制问题进行了探讨，为系统的控制提供了理论指导。

So in this paper based on the characteristics and the optimum state theory of the vehicle, some kinds of control schemes are compared and discussed, and the fuzzy PID control scheme is adopted at last. The relation between air-cushion pressure and fan rotational speed on the optimum driving state is studied. The cushion pressure is used as controlled variable and the fan revolution is used as regulated variable. And transducer and fan motor are actuators.Based on the structure and operating properties of half-tracked air-cushion vehicle, the control system scheme and structure are presented. A control scheme using the self-tuning PID fuzzy logical controller is adopted. Fuzzy rules are set up and some researches have been done for fuzzy tuning method. At the same time the real-time measurement scheme by computer control is proposed, and electric circuits are designed. In the control system of half-tracked air-cushion vehicle cushion pressure P〓 is used as controlled variable and the fan speed n〓 as regulated variable.

因此本文以半履带式气垫车的特性和最佳工作状态理论为指导，通过对各种控制方法的比较与探讨，提出采用模糊PID控制方案，并且研究了在最佳工作状态下垫压及风机转速的关系，提出气垫压力作为控制参数，变频器和风机电机为执行机构，风机转速为调节量；主要进行了自整定模糊PID控制器的设计，研究了自整定PID模糊控制器的实现方法，编制了模糊控制规则，制定了模糊控制参数查询表，并分析了影响自整定模糊控制器相关的影响因素，确定了模糊控制表；为了实现半履带式气垫车的自动控制，还提出了计算机模糊控制系统的原理与结构，设计了相应的测量电路与控制软件。

A method based on the shock tube experiment is proposed for measuring the permeability of airbag fabrics.

提出一种基于激波管实验和理论的空气袋织物透气率的测试方法。

For being easier to conduct the dynamic analysis of an airborn radar antenna, using the mechanical property of the sandwich structure, an equivalent method is proposed.

庄苹为便于机载雷达天线的动力学分析，由夹层结构的力学特性，提出了用单层结构等效夹层结构的方法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。