natural background radiation
基本解释
- 天然本底辐射
- 自然本底辐射
英汉例句
- This is called natural background radiation.
这称为自然环境辐射。 - The committee said the detected levels of radioactive iodine-131 were below one-hundred-thousandth of natural background radiation and not considered harmful.
委员会称此次检测到的碘-131辐射量小于天然本底辐射剂量的十万分之一，不会对公众造成伤害。 - For most people more than half of their natural background radiation dose comes from radon, a radioactive gas that can accumulate in homes, schools and workplaces.
对大多数人来说，他们自然环境辐射剂量的一半以上来自氡 — 一种可聚集在家庭、学校和工作场所的放射性气体。
www.pdcdc.sh.cn - Dr. GERBER: It's approximately four times the natural radiation dose that we all receive annually in the Unites States, as a result from background radiation due to radon and other materials.
NPR: Study: Heart CT Scans May Pose Risk
双语例句
权威例句
词组短语
- natural l background radiation 本底辐射
- natural environment background radiation 天然环境本底辐射