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O 开头的英语单词（共 89,563 个）
Opposite Day
[网络] 相反的一天；小孩登大人；相反日
opposite Dini derivative
[数] 狄尼反导数
opposite direction
反向,敌对[相反]方向
opposite edge of polyhedron
多面体的对稜
opposite experiment
对比实验
opposite face
对立面
opposite firing
对沖燃烧
opposite flank
[机] 相对侧面
opposite flanks
异侧齿面
opposite flow condenser
逆流式冷凝器
opposite forces
对向力
opposite group
[数] 反群
opposite hand view
对称视图
opposite in phase
[电] 反相
opposite in sign
号相反
opposite joint
对接接头,(齐)平接头
opposite leaf
对生叶
opposite leg
异名腿
opposite Lie group
[数] 反向李群