- reversibility of optical path
- 光路: light path
- 可逆性: reversibility; reciprocity; ...
- 可逆性: reversibility; reciprocity; invertibility◇可逆性原理 [光学] reversibility principle; reciprocity principle
- 半可逆性: semireversibility
- 不可逆性: inconvertibility; irrevarsibility; irreversibility; non reversibility; nonreversibility
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