ammonia clock

例句：

1. 1.The ammonia clock is an accurate timepiece that uses the chemical properties of ammonia gas to measure time.
   氨钟是一种精确的计时器，它利用氨气化学性质来测量时间。
2. 2. The ammonia clock was designed to be easy to use and maintain, making it suitable for home use.
   氨钟设计得易于使用和维护，适合家庭使用。
3. 3. The ammonia clock has become popular in recent years due to its accuracy and reliability.
   由于其准确性和可靠性，氨钟近年来变得流行起来。