permissible median level 允许的平均电平
median of signal level 信号电平中值
median of sounds level 噪声声级的中间值
median tolerance level 中间容许水平 ; 半数耐受水平
aual median diolved oxygen level 全年的溶解氧水平中位数
annual median dissolved oxygen level 全年的溶解氧水平中位数
median to high level 中等偏高
This shows that the physical quality of majority students reaches the median level.
由此看出，我院大学生身体素质情况属于中等水平。
The aggregation of data makes it possible to identify, say, a median level of smog exposure.
这些数据的有机组合使得计算比如烟雾暴露的中位水平成为了可能。
Residents here are mostly white collar professionals, whose consumption ability is above the median level.
在此居住的人多属白领阶层，消费能力在中档水平以上。
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