radiation
US /ˌreɪ.diˈeɪ.ʃən/
UK /ˌreɪ.diˈeɪ.ʃən/
1.
輻射, 放射
the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization
:
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Exposure to high levels of radiation can be harmful.
暴露在高度輻射下可能有害。
•
The sun emits various forms of radiation, including ultraviolet light.
太陽發出各種形式的輻射，包括紫外線。
2.
輻射, 發散
the divergence of light or other electromagnetic radiation from a central point
:
•
The radiation of heat from the fireplace warmed the room.
壁爐的熱輻射使房間變暖。
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The study focused on the radiation patterns of antennas.
該研究側重於天線的輻射模式。