as low as practicable

核能专业词汇英语... ... as 砷 as low as practicable 尽实际可能的低 as low as reasonably achievable 按实际可达到的尽可能低 ...

...RP-1 ICRP-6 ICRP-9 使辐射曝露尽可行的低 (as low as practicable) 1. 定量机率效应的risk。