Noviro
凸面
Simplified 凸面
Traditional 凸面
Pinyin tū miàn
Definition convex surface
这个镜子是凸面
Zhège jìngzi shì tū miàn
This mirror is a convex surface
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面
miàn
face; side; surface; aspect; top; classifier for objects with flat surfaces such as drums, mirrors, flags etc.
HSK2
见面
jiàn miàn
to meet; to see each other
HSK1
面包
miàn bāo
bread
HSK1
面前
miàn qián
in front of; facing; (in the) presence (of)
HSK2
方面
fāng miàn
respect; aspect; field; side
HSK2
外面
wài miàn
outside (also pronounced waì mian for this sense); surface; exterior; external appearance
HSK3
上面
shàng miàn
on top of; above-mentioned; also pronounced shàng mian
HSK3
后面
hòu mian
the back; the rear; the last bit; behind; near the end; at the back; later; afterwards
HSK3