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- radioactive uranium chain 铀族放射系
- Radon and its daughters not only are the decay product of natural radioactive uranium series and thorium series, but also are one of natural radiation source. 氡及其子体是天然放射性系列中的铀系、钍系衰变产生的,是人类受天然辐射主要的来源之一。
- Radium and uranium are radioactive elements. 镭和铀是放射性元素。
- Radioactive ray is material thing. 放射线是实际的物质。
- The chain has fallen foul of plants in the water. 链条已和水中的植物缠绕在了一起。
- She has a gold chain about her neck. 她在脖子的周围挂着一根金项链。
- Pitchblende and chalcolite are much more radioactive than uranium itself. 沥清铀矿和铜铀云母比纯铀的放射性强得多。
- The chain has run foul of some plants in the water. 铁链缠在水中的一些植物上。
- A certain discharge of possible radioactive effluent. 一定量的可能有放射性的废水。
- A green radioactive mineral that is a hydrous crystalline phosphate of uranium and copper. 铜铀云母一种绿色的放射性矿物,为铀和铜的氢化结晶云母
- She wore a silver chain around her neck. 她脖子上戴着一条银项链。
- These two pieces of the chain hook together. 这两个链环套在一起。
- radioactive uranium 放射性铀
- He detached a link from a chain. 他从链子上拆下一个链环。
- The anchor chain took charge and ran out. 锚链失去控制而滑了出来。
- A pendant worn on a chain around the neck. 垂饰挂在脖子项链上的垂饰物
- The radioactive dust will contribute to higher levels of uranium and radon. 放射性尘埃会形成铀和氡的高值。
- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一种放射性同位素,尤指碳14。
- He runs a chain of pasta restaurant. 他经营着一个面食餐馆联号。
- I detached my watch from the chain. 我从表链上解下手表。