仪器地

例句：

1. 1. The scientist uses a microscope to observe the microscopic world.
   这位科学家使用显微镜来观察微观世界。
2. 2. The engineer designed a new type of machine for the factory.
   这位工程师为工厂设计了一种新型机器。
3. 3. The teacher used a ruler to measure the length of the rod.
   老师用尺子测量了杆的长度。