milliammeter

例句：

1. 1.The doctor measured the patient's blood pressure with a milliammeter.
   医生用毫安表测量了病人的血压。
2. 2. The engineer used a milliammeter to check the accuracy of the circuit.
   工程师用毫安表检查电路的准确性。
3. 3. The scientist conducted an experiment using a milliammeter to measure the current flow.
   科学家使用毫安表进行了一个实验，以测量电流流动。