The sound absorption coefficiet of osb was tested by the stationary wave method. the results showed that the osb had good sound absorption property compared with brick and concrete.
采用驻波管法测定定向结构刨花板的吸声系数,分析比较了定向结构刨花板与砖、混凝土吸声性能的差异。结果表明,定向结构刨花板具有良好的吸声性能。
This paper discusses the method of suppressing the interference of stationary wave.
这里讨论了压制这种驻波干扰的方法。
Based on conception of wave spectrum, a method for computing swells of a stationary typhoon is presented.
本文从谱的概念出发,提出了静止台风涌浪的计算方法。
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