concentration level中文什么意思

浓度级

浓缩水平；富集水平

• concentration:    n. 1.集中。 2.【化学】提浓， ...
• level:    n. 1.水平仪，水准仪；水准测量。 ...
• allowable ground-level concentration:    地面容许浓度

例句与用法

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1. Radon concentration level in the pits of 24 coal mines in zaozhuang mining area
   枣庄矿区24所煤矿井下氡浓度水平
2. Keep the average carbon monoxide concentration level inside the tunnel at all times
   控制隧道内一氧化碳的平均浓度
3. However , the coneg model legislation also provides exceptions to these concentration levels
   但是,法律还规定示范coneg这些例外浓度
4. Investigation on the concentration level of radon in the tunnel workplace in a hydropower station
   水电站隧道作业场所空气氡浓度水平调查
5. An empirical study on the measure of industry concentration level of petroleum - gas industry in western china
   中国西部地区石油天然气产业集聚水平测度的实证研究