nitrous oxide

例句：

1. 1.The gas is used in the production of fertilizers and as a propellant in aircraft.
   这种气体用于生产肥料和飞机的推进剂。
2. 2.Nitrous oxide is a colorless, odorless gas that can be harmful if inhaled.
   一氧化二氮是一种无色无味的气体，吸入时可能有害。
3. 3. During the test, the students were given a small amount of nitrous oxide to help them relax.
   在测试期间，学生们被给予了少量的一氧化二氮以帮助他们放松。