lightguide tube造句

例句与造句

1. The technology was rendered obsolete by the development of light-emitting diodes ( LED ) in the 1970s, though lightguide tubes are still used in electronics manufacturing, in situations where it is difficult to place an LED in the appropriate physical location on a display or bezel.
2. It's difficult to find lightguide tube in a sentence. 用lightguide tube造句挺难的