For the case of hydrodynamic noise, in which the range of the frequency-thickness product of interest is relatively low, the symmetric zero-order mode dominates the noise radiation.

对于水动力噪声情况，感兴趣的频率厚度乘积相当低，这时零阶对称模式对噪声辐射起主要作用。

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However, the product has changed dramatically, from a single thickness of 6.8 mm to a range from sub-millimeter to 25 mm.

然而，玻璃制品在厚度上发生了巨大变化：从单一的6.8毫米变为亚毫米级至25毫米区间的任意厚度。

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The finished product, Corning says, is two times stronger than traditional glass at half the thickness.

Corning公司表示，最终的产品在厚度减半的情况下其硬度是传统玻璃的两倍。

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This product has a 5mm thickness.

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Although the third-generation iPad surprised many by gaining about half a millimeter of thickness, it looks like Apple could be back to trimming product dimensions by using a new kind of display technology in the next iPhone.

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Improvements still have to be made to make such a product viable, he said, such as reducing the thickness of the panels and reducing power consumption.

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