您要查找的是不是：
- Objective Study on radon pollution in tunnel and protection from the radiation. 目的研究坑道内氡浓度及工作人员的氡防护。
- The construction materials used in highrise building of urban modernization and central heating,cool-making and close rooms cause indoor radon pollution as one kind of noticeable harm. 城市现代化建设中高层建筑使用的建筑材料及其采用的集中供暖、制冷,以至房间常常处于封闭状态,使得室内氡污染成为一种不容忽视的环境危害。
- Radon Pollution in Touristy Karst Cave and Its Prevention 旅游溶洞内氡污染及其防治
- Investigation of Radon Pollution of Waste-rock Yard and Tailing Sand Reservoir of A Uranium Mine 某铀矿山废石场及尾砂库氡污染调查
- We should use anthracite to avoid air pollution. 我们应该使用无烟煤以防止空气污染。
- Pollution control has cleared the air. 污染管制已净化了空气。
- Man is fighting a battle against pollution. 人类正在与污染作斗争。
- Pollution is still very much a live issue. 污染现象仍然是当前的大问题。
- The soil becomes more and more acidic as pollution mounts up. 随着污染的加剧，土壤的酸化越来越严重。
- A clamor in the press for pollution control. 在报纸上对污染控制的呼吁
- Water pollution imperils all kinds of marine life. 水质污染危及所有海洋生物。
- Pollution has stripped the trees of their foliage. 污染剥光了这些树的叶子。
- We have freed the lake from pollution. 我们已经清除了该湖的污染。
- Where does the indoor radon come from? 室内氡气是从哪里而来?
- How does radon affect the human body? 氡气对人体有什么影响?
- Many young people could not resist the spiritual pollution. 很多年轻人不能抵制精神污染。
- Radon is the daughter of radium. 氡是镭的子体。
- A radon progeny continuous monitor was developed. 本工作研制氡子体连续测量仪。
- It will cause pollution and the destruction of our seas and oceans. 这会引起污染，破坏我们的海洋和江河。
- We are sad about the pollution of our beaches with oil. 我们很痛心石油对我们海滩的污染。
