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- However, the actual weight of uranium or plutonium in such a weapon is greater than this amount. 可是，在一枚那样的核武器中，铀或钚的实际重量要比这个数字大得多。
- A writer has found a small deposit of manganese ore and rock specimens flecked with uranium or stained green by copper. 一名作家还发现了一个不大的锰矿堆积体和一些粘染有铀痕迹或者带着铜绿斑痕的矿石标本。
- A writer has found a small deposit of manganese orerock specimens flecked with uranium or stained green by copper. 一名作家还发现了一个不大的锰矿堆积体和粘染有铀痕迹带着铜绿斑痕的矿石标本。
- A naturally radioactive, silvery, metallic transuranic element, occurring in uranium ores and produced artificially by neutron bombardment of uranium. 钚：一种天然地放射性银色超铀金属元素，存在于铀矿中，对铀元素进行中子轰击而人工制成。
- A radioactive metallic_element that is similar to tellurium and bismuth,occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor. 一种放射性金属元素，类似碲和铋，见于铀矿，但能通过用中子轰击铋的核反应制造。
- And the AFL process has a wide applicability to China's uranium ores, being in competition with the traditional agitation leaching process for treating coarse ores. 浓酸熟化-高铁淋滤浸出法对我国铀矿石具有很强的适应性，是一种可与常规搅拌浸出法相竞争的粗粒矿石提取技术。
- I measured the activity of a number of minerals; all of then~ that appear to be radioactive always contain uranium or thorium. 我测量了一些矿物的活性，所有显示放射性的物质均含有铀和针。
- Yet it is openly working on missiles that could deliver one and on the techniques that could produce sufficiently enriched uranium or else plutonium for a weapon's fissile core. 但是它却公然在研究导弹，这些导弹有助于生产出一枚核弹，理论上说，它们可产生可供一枚核弹的裂变核心的足够多的浓缩铀或钚。
- Whether it rains or not makes no difference to me. 下不下雨对我来说都一样。
- 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(沥青铀矿物质、铜铀云母或钙铀云母)的活性比根据其铀或针含量所判断的要高。
- 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。
- 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(沥青铀矿物质、铜铀云母或钙铀云母)的活性比根据其铀或针含量所判断的要高。
- a radioactive element of the actinide series; found in uranium ores 锕类的放射性元素，见于铀矿中
- Many one or little one is indifferent to me. 多一个或少一个对我是无关紧要的。
- Chock the barrel up or else it will roll over. 用楔子塞住圆桶,不然它会滚过去。
- Radium and uranium are radioactive elements. 镭和铀是放射性元素。
- Do you teach your students singly or in groups? 你教学生是个别地教还是按组教？
- A church, school, hospital, asylum, or prison is an institution. 教堂，学校，医院，收容所或监狱皆属公共机构。
- Hard copy is computer output on paper, printing or graphics. 硬拷贝是出现在纸上、印刷上或图表上的电脑输出。
- Do you prefer to have rice or buns? 你愿意吃饭还是吃馒头。
