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- This paper introduces the synthetic methods,physical and chemical properties and applications of rare carth metal alkoxides. 稀土金屬醇鹽是一類重要的稀土化合物。本文主要介紹了稀土金屬醇鹽的合成方法、物理和化學性質及其應用。
- Keywords rare carth clement;Zinc alloy; 稀土元素;鋅合金;
- Keywords rare carth;aluminium-silicon alloy;modification; 稀土;鋁硅合金;變質處理;
- Keywords heteropoly molybdotungstosilicic acid;rare carth element;redox; 鉬鎢硅雜多酸;氧化還原;稀土元素;
- It was in the days when motorcars were rare. 那是在汽車還罕見的時代。
- A top hat is a rare sight these days. 高頂大禮帽現在已不多見。
- I must admit I am very fond of collect rare book. 我得承認我很喜歡海內珍本。
- It's very rare for him to be so late. 他很少遲到。
- Red squirrels are now very rare in Britain. 紅色的松鼠在英國已十分罕見了。
- The white-lipped deer are rare in this area. 白唇鹿在這個地區很罕見。
- These rare tigers are protected by special laws. 這些珍貴的老虎受到專門法律的保護。
- This rare bird has become an endangered species. 這種珍禽已成為瀕臨滅絕的物種。
- A rare smile lit up his stern features. 他那難得一見的微笑在他死板的臉上平添一些生氣。
- It is rare to find such a genius nowadays. 這樣的天才現在很少見。
- He is which is rare for him, in a bad temper. 他在發脾氣,這對他來說是很少見的。
- Many kinds of wild orchid are becoming rare. 很多種野生蘭越來越罕見了。
- All creatures on carth should be respected. 世上所有的生命都應該得到尊重。
- These flowers are very rare in this country. 這些花在該國很少見。
- Rare comestibles are on sale in this market. 這個市場賣稀有食品。
- Edison had rare powers as an inventor. 愛迪生具有罕見的發明天才。