齿轮箱

• gear case
• gearbox
• gear box
• wheelbox
• wheel box
• gear casing
• toothed wheel box
• gearcase
• transmission case
• gear set case

例句

1. 由于换了一个大齿轮箱这台机器的速度大大提高了。
   The rate of the machine moved up sharply because of changing a big gear box.