gas display

例句：

1. 1.The gas display is a warning to the public about the dangers of smoking.
   气体显示是向公众发出吸烟危险的警告。
2. 2. The engineer carefully monitored the gas display during the test.
   工程师在测试期间仔细监控了气体排放。
3. 3.The gas display was used to detect leaks in the pipeline system.
   气体排放被用来检测管道系统的泄漏。