声波法监测炉膛空气动力场采用非接触的测量方式，是一种现代高科技控制手段。
A measurement style of not touching is used during monitoring air dynamical field in a furnace with acoustic method, which is modern high-tech control means.
同时采用小扰动法推导了俯仰通道和滚动通道的简化模型，为空气动力和姿控发动机推力复合控制系统进行初步设计提供了依据。
What′s more, according to the method of little disturbance, the simplified model of pitching and rolling plane is derived, so preliminarily combined control system can be designed.
空气动力学方法的结果与能量平衡法有较大差异。
There was a large discrepancy between the results obtained by energy balance method and by aerodynamic method.
试验表明，风室试验法具有测试精度高、测试稳定性好、通用性广、测试简便的优点，因此它是植保风机进行空气动力试验值得推荐的一种方法。
This paper demonstrates the test precision and stability of air flow chamber method. The experiment displays the advantages of high measuring precision, good testings…
试验表明，风室试验法具有测试精度高、测试稳定性好、通用性广、测试简便的优点，因此它是植保风机进行空气动力试验值得推荐的一种方法。
This paper demonstrates the test precision and stability of air flow chamber method. The experiment displays the advantages of high measuring precision, good testings…
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