A layer of completely even caking agents thin films is formed on the sur-face of filling material by adopting a kind of special mixed technology.
采用一种特殊的混制工艺，使填料表面形成一层完整的均匀的粘结剂薄膜。
The radiated power and acoustic pressure on the shell sur face are calculated, and the influence of the layer area on the shell "s radiation is discussed."
计算了圆柱壳表面的辐射声功率和辐射声压，讨论了阻尼覆盖层面积对声辐射的影响。
The radiated power and acoustic pressure on the shell sur face are calculated, and the influence of the layer area on the shell "s radiation is discussed."
计算了圆柱壳表面的辐射声功率和辐射声压，讨论了阻尼覆盖层面积对声辐射的影响。
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