...潜；潜艇；混响级 [gap=787]Key words:active sonobuoy;sonobuoy range;aeronautical searching;submarine;reverberation level ...
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revetive reverberation level 混响级
relative reverberation level 相对混响级
reverberation masking level 混响掩蔽水平
We get and analysis the data of the reverberation, noise and acoustic pressure level of the Conference Hall and Lecture Hall in some northern university in measurement.
实测和分析了北方某大学的甲报告厅和乙会议厅的混响时间、景噪声、场级等数据。
The noise level of passenger car tire was measured in a reverberation laboratory.
在混响室内测试了轿车轮胎的噪声声级。
The reverberation time and noise level of tunnel-typed public works can be reduced by adding large amount of acoustical structure with high absorptive coefficient.
隧道型公共设施的声环境，可以使用大量具有高吸声系数的吸声构造，铺设于隧道拱壁及轨道铺面，以降低混响时间及噪声。
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