准线用英语怎么说？

准线

• [zhǔn xiàn]
  neat line （墙面）； [数] directrix，alignment

例句

• The TV goniometer measures the angle deviation between the missile and the line of sight. 电视测角器量出在导弹和瞄准线之间的角偏离.
• A quasilinear equation is one in which the highest - order derivative appears linearly. 最高阶导数线性地出现的那种方程是准线性方程.

词组搭配

• 准线望远镜
  accuracy grade

英汉词典释义

• [zhǔn xiàn]
  neat line （墙面）； [数] directrix; alignment

行业词典

• 数学： directrix；