The extinction coefficient of the water is the sum of absorption by the water itself, by particles suspended in the water, and especially by dissolved color substances.
湖水的消光系数是湖水本身和水中悬浮颗粒，特别是溶于水中的有色物质的吸收作用的总和。
The characteristics of the wedge is that the high sound-absorption coefficient remains under the high water pressure.
此种尖劈的突出特点是在高压下仍保持高的吸声系数。
The equivalent sound absorption coefficient of the system can be calibrated by the distilled water. The accuracy of the system can be gotten by the magnesium sulfate solutions of known concentration.
利用蒸馏水标校测量系统等效的吸声系数，采用已知浓度的硫酸镁溶液来标校测量系统的测量精度。
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