source subtraction 中文意思是什麼
source subtraction
解釋
減源法- source : n 1 源頭，水源，源泉。2 根源，本源；來源。3 原因；出處；原始資料。4 提供消息的人。5 血統。vt 〈美...
- subtraction : n. 減去，扣除 （from）; 【數學】減法。
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The measurement position and background noise subtraction which in the boundaries noise measurement of industrial enterprise and factory have been analyzed. the solutions to the sensitive distance from acoustic source and setting of monitoring sites, noise, the external serious influence were proposed
在工業企業廠界噪聲測量中經常遇到的問題主要有監測點位布設和背景噪聲扣除兩類，並對敏感點距聲源距離與布點監測、背景噪聲的測量和受外來聲源嚴重影響時如何測量廠界噪聲等問題提出了解決辦法。
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