装置器

例句：

1. 1. The engineer designed the new device to improve efficiency.
   工程师设计了新的装置以提高效率。
2. 2. The scientist used an appliance to test the sample.
   科学家使用一种仪器来测试样本。
3. 3. The machine is a crucial mechanism for the factory's production line.
   这台机器是工厂生产线上的关键机制。