printing rate recorder

例句：

1. 1. The printingrate recorder is used to measure thespeed of printing.
   印刷速率记录器用于测量打印速度。
2. 2. The printer's printing raterecorder shows that the paper feed isworking properly.
   打印机的印刷速率记录器显示纸张进给器工作正常。
3. 3. The engineerused the printing rate recorder to troubleshoot the printer's issue.
   工程师使用印刷速率记录器来诊断打印机的问题。