







concave mirror
The diameter of a sphere is four times the focal length of a concave mirror cut from it.
The focus of the light on the solar cell can also be fine-tuned by changing the air pressure within the balloon, and thus the curvature of the mirror.

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Open the tool →凹面镜 (āo miàn jìng) means “concave mirror”.
凹面镜 is pronounced āo miàn jìng in Mandarin Chinese.
“concave mirror” is 凹面镜 (āo miàn jìng) in Chinese.
This page has 2 example sentences using 凹面镜, each with pinyin and an English translation.