rare alkaline earth metal中文意思是什麼

rare alkaline earth metal解釋
稀土金屬

  • rare: adj 1 稀少的;(空氣等)稀薄的;(群島、星等)稀疏的。2 稀有的,珍奇的;極好的,珍貴的。3 〈口語...
  • alkaline: adj. 堿的,含堿的,堿性的;強堿的。n. 堿性。
  • earth: n 1 〈常E 〉 地球。2 大地,陸地,地面,地上。3 土壤,土。4 【化學】土類;泥。5 世界人類;人的軀體...
  • metal: n 1 金屬;金屬製品;金屬合金。2 【化學】金屬元素;(opp alloy);金屬性。3 【徽章】金色;銀色。4 ...

※英文詞彙rare alkaline earth metal在字典百科英英字典中的解釋。

  1. In recent years, the colossal magneto - resistance effect in rare - earth manganite perovskites of the type lni. xaxmno3 ( where ln is rear - earth irons la2 +, nd2 +, p2 + ; a is alkaline earth iron ca2 +, sr2 +, ba2 + ) has attract considerable attention in scientific studies due to its potential application. however, the poor temperature dependence of mr and the low - temperature mr effect and the ideal mr only in high field severely limit their practical utility. in this work, we prepared manganite perovskite lai - xsrxmno3 and soft - magnetic ferrite materials fe2o3 and ( ni, zn ) fe2o4 by using sol - gel method separately

    近些年來,人們發現在鈣鈦礦錳氧化物ln _ ( 1 - x ) axmno _ 3 ( ln為la , nd , pr等稀土金屬元素; a為ca , sr , ba等堿土金屬元素)中具有磁電阻( magnetoresistance )效應,由於它在磁記錄,磁傳感器方面具有廣泛的應用前景,同時也向傳統的磁記錄材料提出了挑戰,因而引起了物理學界的廣泛關注。
  2. Effect of rare earth metal yttrium on microstructure and wear resistance of vacuum fusion sintered ni - based coating

    基塗層顯微組織和耐磨性的影響
  3. Synthesis and spectrum study of 5 - bromosalicylaldehyde contract semicarbazided hydrochloride and its rare earth metal complexes

    溴水楊醛縮鹽酸氨基脲稀土配合物的合成及光譜研究
  4. ( 1 ) for the first time, compositing the chemical compounds of alkaline - earth metal with the adsorption material, 13x molecular sieve, silica gel, and activated alumina to gain a series of composite adsorbents with good performance that higher adsorption capacity and lower regeneration temperature and suitable for adsorption refrigeration systems that can be driven by low - grade thermal energy

    首次將堿土金屬化合物及其鹽類與傳統吸附材料13x分子篩、硅膠和活性氧化鋁等復合,制取具有較高吸附量和較低再生溫度的適合於以低溫熱能驅動的吸附製冷過程的一系列優良復合吸附劑。分別在自製的吸附製冷、除濕製冷模擬實驗裝置上,測得該系列復合吸附劑與水和乙醇組成的吸附製冷工質對的吸附製冷性能以及除濕製冷性能均優于傳統吸附劑( 13x ,硅膠和活性炭) 。
  5. Yixing baodeng alloy co., ltd established in dec, 1998. we concentrates on the technic innovation, production, and trade of colourful mo product, automotive lighting material, rare earth metal, magnetic alloy and alloy used for electrician. in 2005 our turnover is more than rmb40million

    是一家致力於有色金屬鉬製品汽車照明工業材料稀土金屬稀土永磁合金材料電工合金材料的生產技術開發及貿易的高科技生產型企業,創建於
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