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1)  Enclosed Space noise
封闭空间噪声
2)  acoustical modes in enclosure
封闭空间声模态
3)  enclosure sound field
封闭空间声场
4)  enclosed space
封闭空间
1.
In this paper,a theoretical study on active control of within enclosed space surrounded by flexiblestructure is accomplished.
本文从理论上研究了外力激励弹性结构条件下封闭空间有源消声问题。
2.
Based on the basic theory of ANC within the enclosed space,this paper models the enclosed space with the COMSOL software,and presents the simulation and analysis effects of noise reduction which is derived from the numbers and location of the secondary noise resources.
基于封闭空间有源消声的基本理论,利用COMSOL软件对封闭空间声场进行了仿真建模,并模拟分析了次级声源的数量和位置关系对消声效果的影响。
5)  closed cavity
封闭空间
1.
The result of the numerical simulation of heat dissipation in a closed cavity is compared with the experiment result.
首次用组合坐标法对小空间自然对流换热问题进行数值模拟,并将封闭空间电缆群散热情况数值模拟的结果与实验结果比较,在所比较的工况点上,计算值与实验值相差小于5%。
6)  closed space
封闭空间
1.
By applying the basic principle of thermodynamics, the expression of characteristic index B to the humidity control in a closed space is derived and is analysed and explained from the angle of two phase equilibrium.
在评述现有关于调湿材料的调湿特性指标的基础上 ,利用热力学基本原理 ,从两相平衡的角度导出封闭空间调湿特性指标值的表达式 ,并对其进行分析说明 。
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