fumeless

例句：

1. 1. The new building is fumeless, which is good for the environment.
   这座新建筑是无烟的，这对环境有好处。
2. 2.The factory has implemented a fumeless system to reduce emissions.
   这家工厂实施了一个无烟系统来减少排放。
3. 3. The fumeless technology is expected to be widely adopted in the future.
   这种无烟技术预计将在未来得到广泛应用。