- Traditional Chinese Character(HanT):
凹度
- Simplified Chinese Character(HanS):
凹度
- Bopomofo(Mandarin Phonetic Symbols): ㄠ ㄉㄨˋ (ㄠㄉ)
- Bopomofo(Zhuyin Keyboard Input/IME): "l 2j4" (l2j4)
- (ASCII) Hanyu Pinyin: "aodu" "Ao1Du4" "Ao1 Du4" (AD)
- (Latin) Hànyǔ Pīnyīn: Dù [ Dù ]
- (英文翻譯) English Translation: "concavity"
- (西語翻譯) Traducción Español: "concavidad"
- (日文翻譯) 日本語翻訳: "凹面"