凹透镜
Traditional form:
凹透鏡
Pinyin (reading):
āotòujìng
Definitions:
- concave lens
Characters:
- 凹 - concave, hollow; depressed; pass, valley
- 透 - to pierce, to penetrate, to pass through; thorough
- 镜 - mirror, glass; lens, glasses
Traditional characters:
Chinese
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