low-pressure gauge

例句：

1. 1. The engineer used a low-pressure gauge to measure the airpressure in the room.
   工程师使用低压表测量房间内的空气压力。
2. 2. The doctorchecked the patient'sblood pressure with a low-pressure gauge.
   医生用低压表检查病人的血压。
3. 3. The technician was instructed toreplace the old low-pressure gaugewith a new one.
   技术人员被指示用一个新的低压表替换旧的。