????:2024-07-01 15:38:56 ??:????
????:????:??????
?7????????????????1???????????????????? (????????????? ???)???????????????7???????????????????????????1???(?)??????,??(Radon,Rn)??,?,????
?4???????,?????????????????????????????????,?????????????????????????????,???????????????????222??????????????220????????5.3?????????8.8????????????????(a)????????????,???????????????????????????
?????,????????????,?????????,????????????
????????,??,5????6?????32.7??????????????????????????,???????????10?,?,?????;5?????17??,???????????????????????????????5???????????????????????????10?????????11??,??????,?,?32????????????????????????????????,??16???,?,??????????????,?????????????
???????????????????????????????,???????????????????5?????????????????????????23??????,????????????????????111??????;6?2??????????????,??,??????????????,????,?????????????????6?4??????????,??????????????
?????????????????????,???????????????????(?????????????????)????,??????????????????????,????????
????????,??2019??????????6????????????????,????????????????????????,??????????????(Pierre-Yves Meslin)?????????????????????????(King Wah Wong)??????????????????????????(Aurιlie Moussi);????????????????????????????????????????????????????,????(??)
???:??????????????????????????????????