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| Chinese | English |
| 紫外线 | ultraviolet radiation The part of the electromagnetic spectrum with wavelengths shorter than light but longer than x-rays; in the range of 4-400 nm (波长比光短、但比X射线长的电磁频谱的一部分；波长在4-400纳米范围内。) |
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| Chinese | English |
| 紫外线 | ultraviolet radiation The part of the electromagnetic spectrum with wavelengths shorter than light but longer than x-rays; in the range of 4-400 nm (波长比光短、但比X射线长的电磁频谱的一部分；波长在4-400纳米范围内。) |