paper feed key

例句：

1. 1. The printer uses a paper feed key to automatically feed paper into the machine.
   打印机使用一个纸料进料键来自动将纸张送入机器。
2. 2.The engineer designed a new paper feed key that reduces jamming and improves efficiency.
   工程师设计了一种新的纸料进料键，可以减少卡纸并提高效率。
3. 3.The technician replaced the old paper feed key with a more durable one.
   技术员用更耐用的纸料进料键替换了旧的。