backscatter radiation是什么意思 backscatter radiation怎么读
backscatter radiation的相关资料
backn.后面；背脊；靠背；后背；后卫vt.支持；后退adv.向后地adj.向后的；后面的；偏远的；过时的；积欠的
back fill后面充填物
backscatter radiation的用法和样例
- Is radiofrequency radiation hazardous to health?
射频辐射对人体健康有害吗？ - The unwanted radiation is referred to as background radiation.
这种有害辅射称为背景辅射。
展开更多
