radiation
US /ˌreɪ.diˈeɪ.ʃən/
UK /ˌreɪ.diˈeɪ.ʃən/
1.
辐射, 放射
the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization
:
•
Exposure to high levels of radiation can be harmful.
暴露在高度辐射下可能有害。
•
The sun emits various forms of radiation, including ultraviolet light.
太阳发出各种形式的辐射，包括紫外线。
2.
辐射, 发散
the divergence of light or other electromagnetic radiation from a central point
:
•
The radiation of heat from the fireplace warmed the room.
壁炉的热辐射使房间变暖。
•
The study focused on the radiation patterns of antennas.
该研究侧重于天线的辐射模式。