展性鎢 的英文怎麼說
中文拼音 [zhǎnxìngwū]
展性鎢
英文
ductile tungsten-
The cool - beam halogen reflector lamps combined with tungsten halogen lamps and dichroic reflectors. they have the advantages of small size, high beam luninsity but low temperature, excellent color rending, high luminous efficiency long life. a lamp of 50w is equal to a general lighting incandescent lamp of 150w in lighting efficincy. this kind of lamps are suitable for reflection lighting and decorative lighting in display windonws and shop interiors, munseums, exhibition halls
冷反射定向照明鹵鎢燈泡和介質膜冷反光鏡組合而成，具有體積小，光束亮高而溫度低，顯色性好，光利用率高，壽命長等優點，一隻50瓦燈的亮度，相當於一只150瓦普通白熾燈泡的亮度，這種燈適用於商場櫥窗、博物館、展覽廳等場合的定向照明和室內裝飾照明。In the light of tectonic evolution stage and metallogenesis, these metallogenic system ( assemblage ) could be classified as follows : ( 1 ) the pre - divergent metallogenic system in the southwest margin of north china paleocontinent in the archean - meso proterozoic : dongdashan iron, jinchuan nickel - copper. ( 2 ) the divergent metallogenic system in the northern margin of the qaidam paleoplate in the middle - late proterozoic : huashugou - liugouxia iron. ( 3 ) the metallogenic system in the active margin in the early paleozoic : the metallogenic assemblage in the island arc - rift in the early stage ( baiyinchang - qingshuigou copper - polymetallic ) ; the metallogenic assemblage in island arc in the middle - late stage ( honggou - jiaolongzhang copper - polymetallic ) ; the back - arc extensional basin ( zhuzhuiyaba - jiugequan - shijuli copper ) ; the metallogenic assemblage in connection with subduction and magmatic - hydatogenesis ( taergou - xiaoliugou wolfram ; huashugou - liugouxia copper ; dadonggou - diaodaban lead - zinc ) ; the metallogenic assemblage is related to the oceanic crustal shards ( dadaoerji chromite ; yushigou chromite ). ( 4 ) the metallogenic system has something to do with collision - type orogeny : the metallogenic assemblage in foreland basin ( tianlu copper ) ; the metallogenic assemblage with the intracontinental orogeny and ductile shear ( hanshan - yingzhuishan gold )
根據構造發展階段和成礦作用特點，確定本區成礦系統及組合如下： （ 1 ）華北板塊西南邊緣太古宙中元古代裂解期前成礦系統：東大山鐵成礦組合，金川鎳銅成礦組合； （ 2 ）柴達木板塊北緣中、新元古代裂解成礦系統：樺樹溝柳溝峽鐵成礦組合； （ 3 ）加里東期活動大陸邊緣成礦系統：早期島弧裂谷成礦組合（白銀廠清水溝銅及多金屬成礦組合） ，中、晚期島弧成礦組合（紅溝蛟龍掌銅及多金屬成礦組合） ，弧后擴張盆地成礦組合（豬咀啞巴九個泉石居里銅及多金屬成礦組合） ，與俯沖作用有關的巖漿熱液成礦組合（塔爾溝小柳溝鎢成礦組合，樺樹溝柳溝峽銅成礦組合，大東溝吊大坂鉛鋅成礦組合） ，洋殼殘片成礦組合（大道爾吉鉻成礦組合，玉石溝鉻成礦組合） ； （ 4 ）碰撞造山成礦系統：前陸盆地成礦組合（天鹿銅成礦組合） ，陸內造山韌性剪切成礦組合（寒山鷹咀山金成礦組合） 。Lanthanum - tungsten electrode is the substitution product of thorium - tungsten electrode because of its freedom from radioactivity. its other advantage is its endurance of high current and low burn spoilage rate
鑭鎢電極因無放射性而成為較有發展前景的釷鎢電極的替代產品。它的另一優點是耐用電流高而燒損率最小。The recent research status on tungsten heavy alloys was reviewed. the methods to improve the properties of tungsten alloys, including the changes of tungsten particle size, component, content of matrix and the improvements of sintering technics, were also discussed in details. at the same time, some advanced overseas penetrators were introduced and research directions of tungsten alloy materials were pointed out in this paper
主要介紹高密度鎢合金穿甲彈材料侵徹性能的國內外研究發展狀況，從改變合金中鎢顆粒性質、粘結相組成與含量，以及結合工藝改善的角度，總結目前國內外改善高密度鎢合金侵徹性能的主要途徑，並對當前國外先進鎢合金穿甲彈產品的材料成分、制備工藝及侵徹效果進行了簡要介紹和分析;同時針對國外穿甲彈的研究概況和發展趨勢，提出我國今後研究和開發新型高侵徹性能鎢合金穿甲彈的主要研究方向。With the development of high power microwave tube, the theoretical and experiment investigation of the high performance cathode have been conducted. the research work includes how to prepare the high performance cathode and the effect of the based metal on the cathode emission, the measurement of the inner and surface fine structures of the cathode, the discussion of emission mechanism of thermionic cathode. after a lot of experiment, we finally determined the cathode preparation with an excellent emission
為了適應大功率微波管的發展，本文展開了對高性能（大電流密度、長壽命）陰極的研究，研究工作包括陰極制備工藝、鋇鎢陰極基金屬對陰極發射性能影響、以及鋇鎢陰極基底內部結構無損檢測及表面形貌檢測、鋇鎢陰極發射機理探討及應用四個方面的實驗和理論的研究。In this thesis, the researches on electorcliromic materials were reviewed roundly, and the electrochromic mechanisms of tungsten oxide and nickel oxide films were systematically summarized. besides these, the preparation methods and their properties and the structure of electrochromic smart window were described in detail
本論文全面的評述了電致變色材料的研究發展過程，對氧化鎢、氧化鎳等薄膜材料的電致變色機理作了系統的總結，並對電致變色材料的制備方法與特性，電致變色智能窗器件的結構和性能做了詳盡的描述。Abstract : the newest mannfacturing, sintering technology on superfine and nanom eter hardmetal powder, manufacturing technology of cemented carbide, as well as re covery technique on tungsten materials and hardmetal wastes were comprehensively expounded in this paper and the reference proposals on hardmetal ' s developing trends, application prospects and environment problems were also put forward
文摘:綜合評述了第八屆國際鎢討論會關于硬質合金領域的超細、納米級粉末製造技術、燒結技術、硬質合金製造技術以及鎢材料和硬質合金廢品的回收利用技術，並對硬質合金的發展趨勢、前景應用等新動向及環境問題提出了參考性建議。分享友人