| 释义 |
radonra‧don /ˈreɪdɒn $ -dɑːn/ noun [uncountable]   radonOrigin: 1900-2000 radium - As for radon, Rudy said looking for radon in drinking water would be extremely expensive and might not help public health.
- But who do we blame for radon?
- Environmentalists keep quiet because concern over radon in houses would divert attention from the campaign against nuclear power.
- If the soil is permeable enough radon can diffuse out before it decays.
- The applicability of such data derived from uranium miners to the general population is central to the radon issue.
- They are the noble gases: neon, argon, krypton, xenon, and radon.
- This is the so-called Action Level beyond which the occupier is advised to reduce the radon level.
► Elementsaluminium, nounargon, nounarsenic, nounbarium, nounbase metal, nounbismuth, nouncadmium, nouncaesium, nouncalcium, nouncarbon, nounchlorine, nounchromium, nouncobalt, nouncopper, nounferrous, adjectivegold, noungold, adjectivegolden, adjectivehalogen, nounhydro-, prefixhydrogen, nouniodine, nouniridium, nouniron, nounisotope, nounkrypton, nounlead, nounlithium, nounmagnesium, nounmanganese, nounmercury, nounmolybdenum, nounnickel, nounnitrogen, nounoxygen, nounphosphorus, nounplatinum, nounplutonium, nounpotassium, nounprecious metal, nounradium, nounradon, nounselenium, nounsilicon, nounsilver, nounsilver, adjectivesodium, nounstrontium, nountin, nountin, adjectivetitanium, nountrace element, nountungsten, nounuranium, nounxenon, nounzinc, noun ADJECTIVE► high· Would firms move into areas with high radon concentrations?· Equally high domestic lifetime radon exposures are rarely found. NOUN► gas· One area of recent debate concerns radon gas and its links to lung cancer.· In recent years, concern has been raised over exposure to ionizing radiation from radon gas. a radioactive gas that is used in the treatment of diseases such as cancer. It is a chemical element: symbol Rn |