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Words
Kanji
双
凸
面
【
shuāng
tū
miàn
】
convex on both sides (of lens)
biconvex
双
凸
面
【
shuāng
tū
miàn
】
convex on both sides (of lens)
biconvex
双
HSK 3
含义
set of two, pair, couple; both
拼音
shuāng
Details
凸
HSK 7-9
4
含义
protrude, bulge out, convex
拼音
tū
Details
面
HSK 1
1
含义
face; surface; plane; side, dimension; Kangxi radical 176
拼音
miàn
Details
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