polluting material的用法和樣例：
例句
- Physicists are studying new ways of generating electricity with less damage to the environment. In the meantime, many power plants are being modernized to give off less polluting material.
物理學(xué)家們正在研究對環(huán)境危害少的發(fā)電新方法，與此同時(shí)，許多發(fā)電廠(chǎng)也在實(shí)現現代化以減少污染物質(zhì)的釋放量。
