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- rare element chemistry 稀有元素化学
- Uranium is very valuable because it is a rare element. 铀很贵重，因为它是稀有元素。
- It also supplies liquid oxygen, liquid nitrogen, acetylene, carbon dioxide, hydrogen, propane, freon,liquid ammonia,and rare element gas. 还兼营液氧、液氮、液氩、乙炔气、二氧化碳、氢气、丙烷气、氟里昂、液氨及其他高纯和稀有气体。
- The professor is doing physical analysis on the rare elements. 教授正在对稀有元素进行物理分析。
- A coarse-grained granite, sometimes rich in rare elements such as uranium, tungsten, and tantalum. 花岗伟晶岩一种有时富含铀、钨和钽等稀有元素的粗纹理花岗岩
- There are many different elements in aerosiderite,the main element are iron and nickel,and some rare element in earth. 陨铁成分很杂主要是铁和镍，还有地球少有的元素。
- Liu Ruoxin and Fan Qicheng. 1990. Major element and rare element of ultra-marie xenolith in eastern China. In: Tu Guangzhi. Ed.Upper Mantle Characteristic and Dynamics of China. Beijing: Seismological Press. 刘若新;樊祺诚.;1990
- He has been teaching and researching in the field of environmental chemistry and Rarely Distribute elements Chemistry in these years. 多年来一直从事环境化学及稀散元素化学教学及研究工作。
- It come from inferior archipelago of Pori,, contain abundant specific potter's clay, porcelain clay, kalium dioxide, sodium dioxide ,12 kinds of rare element of oxidizing calcium etc. inside. 它来自于波里尼西来群岛，内涵丰富特定的陶土、瓷土、二氧化钾、氧化钙等十二种稀有元素。
- The ability of life to concentrate rare elements within itself is really quite remarkable. 生物在其体内浓缩稀少元素的能力十分显著。
- A coarse-grained granite,sometimes rich in rare elements such as uranium,tungsten,and tantalum. 花岗伟晶岩一种有时富含铀、钨和钽等稀有元素的粗纹理花岗岩。
- A coarse - grained granite, sometimes rich in rare elements such as uranium, tungsten, and tantalum. 花岗伟晶岩一种有时富含铀、钨和钽等稀有元素的粗纹理花岗岩
- Furthermore, the immiscibility can enrich rare elements to high level, which owe to the affinity of volatile like F, B, P, etc to rare elements. 还对稀有金属有高度富集作用，这主要归功于F、B、P等挥发份对稀有金属元素的亲和力。
- It was in the days when motorcars were rare. 那是在汽车还罕见的时代。
- Elemental Abundance; Atomic Size; Igneous Rocks; The Volcanic Rocks; Mineralogy of Economically Important Rare Elements; Why are Mineral Properties Important? 矿物元素丰富度;原子大小;火成岩及火山岩介绍;稀有矿物及其经济价值;矿物特性?
- In a printer, the removable type element. 印刷机上可拆卸的打印部件。
- A top hat is a rare sight these days. 高顶大礼帽现在已不多见。
- He's in his element when playing badminton. 他打起羽毛球来真是得心应手。
- I must admit I am very fond of collect rare book. 我得承认我很喜欢海内珍本。
- This heater needs a new element. 这个加热器需要一组新电阻丝。
