| 释义 |
1 ?衰减法 ... decay line ==> 衰变管线,滞留管线 decay method ==> 衰减法 decay mode ==> 衰变方式,衰变类型,衰变型 ...
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Two test methods, natural radioactive background method and decay method, used to verify the detection limit of radioactive aerosol monitors are studied. 研究了放射性气溶胶监测仪的检测方法，即天然本底检测法和衰变检测法。 - 2
Mainly used three methods, including including the F-K domain filter, internal excision and the energy decay method to attenuate multiple and obtained a more ideal result. 主要采用了F - K域滤波法、内切除和近道能量衰减法压制多次波三种技术，取得了较好的效果。 - 3
Calculates the natural ventilation rate by the tracer gas decay method. Explores the definition of the indoor criterion of carbon monoxide concentration and the carbon monoxide emission from cars. 利用示踪气体法计算了地下停车库的自然通风量，并讨论了地下汽车库内一氧化碳允许浓度和小汽车一氧化碳排放量的确定。
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