variable-speed feed roll

• 变速喂料辊

variable-speed feed roll的用法和样例：

例句

1. In the coating pan, baffles are used to both direct the flow of paint to the pick-up roll and direct air bubbles away from the pick-up roll.
   在涂料盘中，挡板应用在引导涂料去带料辊和引导气泡从带料辊移开。