难检字字典在线查询

汉语拼音：fàng shè xìng

1.某些元素（如镭、铀等）的不稳定原子核自发地放出射线而衰变的性质。

2.医学上指由一个痛点向周围扩散的现象。～影响。

• The company warned that small amounts of radioactive leak could occur during the process, but that the amount would be harmless.

  该公司警告说，这一过程中可能发生少量放射性物质泄漏，但这个量不会有害。

• and that larger amounts of other radioactive material, from discarded X-ray machines to spent fuel, might be used to make a dirty bomb.

  担心数量更多的其他放射性材料（从废弃的X光机到乏燃料）可能被用于制造脏弹。

• It had been used for practical ends, to identify elements and to unravel radioactive decay chains.

  已将其用于实践的目的，去鉴别元素和阐明放射性衰变系。

• Potassium iodide, also known as the radiation pill, prevents the body's absorption of the radioactive iodine present in reactor emissions.

  其中碘化钾可以防止人体吸收核反应堆泄出的放射性碘。

• He said the rise could possibly be due to a continuous leak of highly radioactive material from the area around the crippled reactors.

  他说，水平上升可能是因为受损反应堆周边地区的高放射性物质持续泄漏。

• He said the likeliest explanation was an emission of radioactive steam from the containment vessel, although that had not been confirmed.

  他说这很可能是由于放射性蒸汽外泄导致的，不过目前具体情况尚未得到证实。

• While some of these gases are radioactive, they did not pose a significant risk to public safety to even the workers on site.

  当一些这些气体是放射性的，他们不构成重大风险，甚至公共安全，工人们在现场工作。

• The United Nations agency says they do not protect against external radiation, or against any other radioactive substance.

  这个联合国机构表示，这些药片不能防止外部辐射，也不能抵御任何其他的放射性物质。

• The unnamed enthusiast brought radioactive materials, as well as a Geiger counter which he ordered from the United States.

  这为匿名核能爱好者自备一堆放射性原材料，还有一个盖格辐射剂量仪，这些东西都是他从美国订购的。