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单词 autunite
释义

autunite /'ɔːtʌnaɪt//o'tʌnɪt/

英汉-汉英词典
n. 钙铀云母
词组 | 习惯用语
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  • unite vt. 使…混合；使…联合；使…团结 vi. 联合；混合；团结
  • attentive adj. 对某人〔物〕 注意的;留心的;警惕的 殷勤的;体贴的 彬彬有礼的
  • attenuate v. 变细；稀释；变弱 adj. 细的；薄的；减少的
  • united adj. 团结的，和睦的；一致的，统一的
autunite n. [矿物] 钙铀云母

网络短语:
calcium autunite 钙铀云母
sodium autunite 钠钙铀云母；钠铀云母
hydrogen autunite 氢铀云母
autunite e 钙铀云母
cobalt autunite 钴铀云母
aluminum autunite 铝钙铀云母
manganese autunite 锰铀云母
lead autunite 铅钙铀云母
aluminium autunite 铝钙铀云母
英语例句库
  1. The content of autunite is between 2% to 4%, and the content of phosphor is over or equal to 0.8%;The content of salt is between 3% to 7%.
    其中粗蛋白质含量大于或等于35％，粗纤维小于或等于2O%，粗灰分小于或等于15％，钙含量2．0-4．O％，总磷大于或等于0．8％，食盐含量3．0-7.0%。
  2. But an unexpected fact was noted: certain minerals( pitchblende, chalcolite, autunite) had a greater activity than might be expected on the basis of their uranium or thorium content.
    但是一个意外的事实引起了我的注意：某些矿物质(青铀矿物质、铀云母或钙铀云母)活性比根据其铀或针含量所判断的要高。

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英语百科

Autunite

Autunita bajo luz UV.

Autunite (hydrated calcium uranyl phosphate) with formula: Ca(UO2)2(PO4)2·10-12H2O is a yellow - greenish fluorescent mineral with a hardness of 2 - 2½. Autunite crystallizes in the orthorhombic system and often occurs as tabular square crystals. Due to the moderate uranium content of 48.27% it is radioactive and also used as uranium ore. If the mineral dries out, it converts to meta-autunite-I, which can turn into meta-autunite-II after heating. These two subsequent minerals are very rare in nature. For scientific studies it is recommended to store the mineral in a sealed container to minimize the water loss. Museums are known to have covered the mineral with lacquer to avoid drying of the mineral.
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更新时间：2025/6/18 18:11:47