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refractive index的英文翻译是什么意思，词典释义与在线翻译：
英英释义
Noun:
-
the ratio of the velocity of light in a vacuum to that in a medium
refractive index的用法和样例：
例句
- The refractive index also increases with the RTA temperature.
薄膜的折射率随退火温度的升高而增加。 - The negative index interpretation was soon challenged, however.
不过这项对于负折射率的诠释很快就受到质疑。
