透镜 (tòu jìng) — lens (optical component)

Definition

Examples

• 这个透镜的焦距是多少？
  Zhè ge tòu jìng de jiāo jù shì duō shǎo?
  What is the focal length of this lens?
• 科学家用透镜观察微小的生物。
  Kē xué jiā yòng tòu jìng guān chá wēi xiǎo de shēng wù.
  Scientists use lenses to observe tiny organisms.
• 他买了一对新的透镜来更换旧相机上的。
  Tā mǎi le yí duì xīn de tòu jìng lái gēng huàn jiù xiàng jī shàng de.
  He bought a pair of new lenses to replace the ones on his old camera.