... harmonograph谐波记录器 harmonometer和声计 harn低质粗支亚麻纱 ...
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联合信道和噪声估计 joint channel and noise estimation
电影和电视声音设计 Sound Design for Film and Television
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通常，一个手持集成示范等30人是在边界上的三脚架安装位置和声级计，例如，一个15分钟的测量制成。
Often a hand held integrating sound level meter such as the Model 30 would be mounted on a tripod at a boundary position and, for example, a 15 minute measurement made.
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