1. Callahan posits that chemical elements radiate electromagnetic signals. 卡拉汉假定化学元素放射电磁信号。
2. Some people are worried that electromagnetic fields from electric power lines could increase the risk of cancer. 一些人担心电源线的电磁场可能增加患癌症的风险。
3. Radiowaves are electromagnetic radiation that we can't see. 无线电波是一种我们看不见的电磁辐射。
4. What we are seeing from earth is actually electromagnetic radiation that's coming from stars. 我们在地球上看到的其实是来自恒星的电磁辐射。
5. Neutrinos can thus escape from regions of space where light and other kinds of electromagnetic radiation are blocked by matter. 因此,中微子可以从光和其他电磁辐射被物质阻挡的空间区域中逃逸出来。