detectable contamination造句

例句与造句

1. Continuous monitoring since then continues to report no detectable contamination of the waters.
2. A subsequent radiological survey of beach, sand and seawater by staff from the Atomic Weapons Establishment concluded that there was no detectable contamination.
3. He said he was halting the sales " to ensure American consumers that scrap metal released from Energy Department facilities for recycling contains no detectable contamination from departmental activities ."
4. It's difficult to find detectable contamination in a sentence. 用detectable contamination造句挺难的