instrument of monetary regulation

例句：

1. 1.The scientist used an instrument to measure the temperature of the liquid.
   科学家使用一个仪器来测量液体的温度。
2. 2. The engineer designed a new instrument for the factory.
   工程师为工厂设计了一种新的仪器。
3. 3. The doctor uses an instrument to check the patient's blood pressure.
   医生使用一种仪器来检查患者的血压。