例句與造句

1. Likewise, many computer plotters ( which since the early 1990s have been replaced with large-format inkjet and laser printers ) used rotary stepper motors for pen and platen movement; the typical alternatives here were either linear stepper motors or servomotors with closed-loop analog control systems.
2. It's difficult to find computer plotter in a sentence. 用computer plotter造句挺難的