| 单词 | mass law of sound insulation |
| 释义 | mass law of sound insulation [`mas `lȯ ǝv `sau̇nd ´in·sǝ´lā·shǝn] CIVIL ENGINEERING The rule stating that sound insulation for a single wall is determined almost wholly by its weight per unit area; doubling the weight of the partition increases the insulation by 5 decibels. |
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