从扇形体端点印出的法截线的英文

normal sections from either end point of a segment

• 从:    follow
• 扇形:    fan-shaped
• 体:    body; part of the ...
• 端点:    extreme point; end ...
• 印:    seal; stamp; chop
• 出:    used as a compleme ...
• 的:    4次方是 The fourth po ...
• 法:    law
• 截:    cut; sever
• 线:    thread; string; wi ...