capnograph

例句：

1. 1. The engineerused a capnograph to measure theair pressure in the tunnel.
   工程师使用一个压力计来测量隧道中的气压。
2. 2. The capnograph showed that the temperature inside thechamber had increased by 5°C.
   压力计显示，该室内部的温度增加了5°C。
3. 3. The capnograph wasused to monitor the gas flow rate duringthe experiment.
   压力计被用来监测实验期间的气体流量。