短語詞組短語penetrating ionizing radiation 貫穿性電離輻射penetrating neutron radiation 中子穿透輻射weakly penetrating radiation 弱貫穿輻射strongly penetrating radiation 強(qiáng)貫穿輻射penetrating radiation tests 射線檢測natural penetrating radiation 貫穿輻射strong penetrating radiation 強(qiáng)貫穿輻射penetrating radiation dose rate 貫穿輻射劑量率highly enriched uranium penetrating radiation 高度透過性輻射 返回 penetrating radiation