Indexing Matters

凹...

凹...

凹 ao ˉ

(Concave, Dented, Depression, Hollow, Indentation)

Concave, Dented, Depression, Indentation, Hollow

凹

凹凸不平的

ao ˉ tu ˉ buˋ pingˊ de˙

(Bulging, Bumpy, Uneven)

Bulging, Bumpy, Uneven

>>凹凸不平的

凹, 凸, 不, 平, 的

rhymes-凹凸不平的

凹了

ao ˉ le˙

(Bent)

Bent inwards

凹, 了

rhymes-凹了

凹透鏡

ao ˉ touˋ jingˋ

(Concave)

Concave lens

Cat: Math-Science-Optics (Concave lens) Next

>>凹透鏡

凹, 透, 鏡

rhymes-凹透鏡

凹面鏡

ao ˉ mianˋ jingˋ

(Concave)

Concave mirror

Cat: Math-Science-Optics (Concave mirror) Next

凹, 面, 鏡

rhymes-凹面鏡

雙凹

shuang ˉ ao ˉ

(Biconcave, Double)

Biconcave, Double concave

雙, 凹

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