射線
shè​xiàn

ray (physics)

shè​xiàn ray (physics)
  1. 射 shè verbnoun
    to emit
    to emit or radiate light, heat, or waves
  2. 线 線 xiàn noun
    line (geometry)
    (geometry) the figure formed by a moving point

shè​xiàn ray (mathematics)
  1. 射 shè verb
    to shoot
    to shoot or fire an arrow, bullet, or ball; to launch with force; to eject or discharge a liquid or gas
  2. 线 線 xiàn noun
    line (geometry)
    (geometry) the figure formed by a moving point