例句與造句

1. In 1965 Tideland introduced the world first transistorized automatic lamp changer.
2. An "'automatic lamp changer "'( or "'lampchanger "') is a device used to ensure that a navigational light such as a marine lighthouse or aero beacon stays lit even if a bulb burns out.
3. It's difficult to find lamp changer in a sentence. 用lamp changer造句挺難的