名詞 optical instrument:

1. an instrument designed to aid vision

1. One that sells lenses, eyeglasses, and other optical instruments.
   眼鏡商，光學(xué)儀器商出售光學(xué)儀器、眼鏡或其它光學(xué)儀器的人
2. Microscopes and telescopes are optical instruments.
   望遠鏡和顯微鏡是光學(xué)儀器。
3. An optical instrument that uses a lens or a combination of lenses to produce magnified images of small objects, especially of objects too small to be seen by the unaided eye.
   顯微鏡用一個透鏡或一些透鏡的組合來制造小物體的放大形像的視力工具，通常用來觀察肉眼看不到的物體