例句與造句

1. Dilution and diffusion factors as well as chlorination combine to make this type of operation nonfeasible.
2. Officials say that the system will next be modified to calculate the diffusion factor for ash-laden smoke emitted by volcanic eruptions.
3. "Contrary to reports in the lay press, municipal water supplies are very difficult to contaminate, " he wrote, explaining that " dilution and diffusion factors as well as chlorination " weaken such assaults.
4. It's difficult to find diffusion factor in a sentence. 用diffusion factor造句挺難的