natural environment
天然放射性本底
natural radioactive background
暂无补充释义。
相关词条
cardiolipin natural lecithin
natural law
natural stone
natural place
natural crystal of minerals
natural circulation
natural resin
natural radioactive background
暂无补充释义。
natural environment
cardiolipin natural lecithin
natural law
natural stone
natural place
natural crystal of minerals
natural circulation
natural resin