Definition

Examples

• 黑暗中出现了一道光柱。
  Hēi'àn zhōng chūxiàn le yí dào guāng zhù.
  A beam of light appeared in the darkness.
• 激光器发出的光柱非常明亮。
  Jīguāngqì fāchū de guāng zhù fēicháng míngliàng.
  The light beam emitted by the laser is very bright.
• 天文学家观测到了罕见的光柱现象。
  Tiānwénxuéjiā guāncè dào le hǎnjiàn de guāng zhù xiànxiàng.
  Astronomers observed a rare light cross phenomenon.