切点（与圆或圆弧相切的点）的英文

tangent

• 切点:    point of contact; ...
• 与:    take part in; part ...
• 圆:    round; circular; s ...
• 或:    nǎi-.
• 圆弧:    arc; circle; circu ...
• 相:    looks; appearance
• 切:    correspond to; be ...
• 的:    4次方是 The fourth po ...
• 点:    drop