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- Rhenium is a rare disperses noble metal. 铼属于贵重稀散金属,对分析要求较高。
- The linewidth of the laser emission is-5nm when a prism is used as the dispersive element and is reduced even further to-lnm when the prism is replaced by a diffraction grating. 当用棱镜作为色散元件时,其线宽约为5毫微米; 如果用衍射光栅代替棱镜则线宽可窄至1毫微米左右。
- Coexistence of disperse elements is an common phenomenon. 分散元素共生,是一种常见的现象。
- Disperse elements can be super-richening,even to form independent deposits under some certain geological setting. 在一定地质条件下,分散元素可以发生超常富集,乃至形成分散元素的独立矿床。
- Hot-water sedimentation plays an important role in the mineralization of some disperse elements. 热水沉积作用在某些分散元素的成矿过程中具有重要意义。
- Low temperature is favorable for super-richening and formation of independent minerals of disperse elements. 低温条件有利于分散元素的超常富集和形成独立矿物;
- It was in the days when motorcars were rare. 那是在汽车还罕见的时代。
- Super-richening and coexistence of disperse elements have been preliminarily studied based on the geological facts in the paper. 本文以地质事实为基础,初步探讨了分散元素的超常富集和共生问题。
- A top hat is a rare sight these days. 高顶大礼帽现在已不多见。
- I must admit I am very fond of collect rare book. 我得承认我很喜欢海内珍本。
- Studies of the Xiangquan thallium deposit show that thallium, as a disperse element, can form wt only polymetallic deposits but also independent thallium deposits. 香泉铊矿床的发现和研究表明,分散元素铊不仅可以富集形成伴生型多元素矿床,还可以形成单一元素的独立铊矿床。
- It's very rare for him to be so late. 他很少迟到。
- Red squirrels are now very rare in Britain. 红色的松鼠在英国已十分罕见了。
- The white-lipped deer are rare in this area. 白唇鹿在这个地区很罕见。
- These rare tigers are protected by special laws. 这些珍贵的老虎受到专门法律的保护。
- Regional strata and host rocks of the Pb-Zn deposits in SW Yangtze block have high contents of Zn, Pb, and Cd, which is fundamental for the Pb-Zn mineralization and the enrichment of dispersed elements. 扬子地块西南缘铅锌矿床的容矿岩石及区域地层中Zn、Pb和Cd等的高背景值是铅锌成矿和分散元素富集的物质基础。
- This rare bird has become an endangered species. 这种珍禽已成为濒临灭绝的物种。
- A rare smile lit up his stern features. 他那难得一见的微笑在他死板的脸上平添一些生气。
- It is rare to find such a genius nowadays. 这样的天才现在很少见。
- He is which is rare for him, in a bad temper. 他在发脾气,这对他来说是很少见的。