起落架动刚度及阻尼特性是研究直升机“地面共振”问题两个重要参数。
Dynamic stiffness and damping characteristics of landing gears are important parameters to be used to investigate the "ground resonance" of helicopters.
针对滑橇式起落架直升机 ，提供了一种“地面共振”动力稳定性分析的方法。
An analytical method of ground resonance dynamic stability countering the helicopters with ski landing gears is provided.
文中给出了该机“地面共振”初步计算的计算方法和计算结果，并得出初步计算结论。
The analysis method, computed results and conclusion for the helicopter ground resonance are presented.
对某新型直升机垂直起落状态“地面共振”初步分析，采用经典的空间动力模型进行计算。
This paper described the primary analysis of a new model helicopter ground resonance in taking off and landing by employed classical spatial dynamic model.
这架试验机上安装有我国第一套数字式气动变稳飞行控制系统，这类飞机上不允许地面共振现象存在。
It is not allowed that construction resonance phenomena appear in the aircraft which is equipped with digital variable stability system.
首先分析了地面核磁共振信号的特征和奇异噪声的来源与特点，提出了相应的消除方法并进行了仿真研究。
The features of Surface Nuclear Magnetic Resonance(SNMR) signal for underground water and the sources and characters of the spike noise distortion are analyzed.
地面核磁共振(SNMR)技术是目前世界上直接用来寻找地下水的技术。
The surface nuclear magnetic resonance (SNMR) technology is a method that detecting the underground water directly at surface.
导电模型的地面核磁共振感应电动势是含水量的非线性函数。
The induced voltage of surface nuclear magnetic resonance (NMR) based on conduction model is a nonlinear function of water content distribution.
前言：目的医学核磁共振与地面核磁共振找水是核磁共振技术应用的不同领域。
Objective: Medical Nuclear Magnetic Resonance Tomography (MNMRT) and Surface Nuclear Magnetic Resonance Detection of groundwater (SNMRD) are different areas of NMR technology applications.
着重评述多电极地电探测、地面穿透雷达、地面核磁共振三种先进的地球物理探测方法。
It comments emphatically on three advanced geophysical exploration methods of multi-electrode geoelectric measurement, ground penetrating radar and SNMR.
着重评述多电极地电探测、地面穿透雷达、地面核磁共振三种先进的地球物理探测方法。
It comments emphatically on three advanced geophysical exploration methods of multi-electrode geoelectric measurement, ground penetrating radar and SNMR.
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