noise exposure meter

噪声等值线图,noise... ... ) noise contours 噪声等值线 ) noise exposure meter 噪声暴露计 ) noise pattern 噪声图声> ...

网易博客欢迎您... ... 气体检测器 gas detector 燥音累积器 noise exposure meter 防爆结构 explosion-protected construction ...

... 1. 噪声暴露限度 noise exposure rating 2. 噪音音响时间 noise exposure meter 2. 噪声暴露限度 noise exposure limit ...