三手烟残余中包含有重金属、和致癌物质，特别是放射性物质对儿童是危害重大的。
The residue found in third-hand smoke includes heavy metals, carcinogens and, even radioactive materials that are dangerous to children.
这些包括重金属，致癌物资甚至放射性物资在内的残余物，沾满了婴幼儿的双手甚至被他们的呼吸道吸收。当婴幼儿在地板上爬行或者玩耍时，所受的污染尤甚。
The residue includes heavy metals, carcinogens and even radioactive materials that young children can get on their hands and ingest, especially if they're crawling or playing on the floor.
他认为新型聚合物还可以用来清除废弃核电站里的污染。这些地方的管道内残余的放射性钴还仍然是一个问题。
He thinks that the new polymer could also be used to decontaminate decommissioned nuclear power-stations where residual radioactive cobalt in pipes remains a problem.
他认为新型聚合物还可以用来清除废弃核电站里的污染。这些地方的管道内残余的放射性钴还仍然是一个问题。
He thinks that the new polymer could also be used to decontaminate decommissioned nuclear power-stations where residual radioactive cobalt in pipes remains a problem.
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