正熔體 的英文怎麼說
中文拼音 [zhēngróngtǐ]
正熔體
英文
orthomelts-
The crystallization and melting behavior of mellocene - catalized branched and linear polyethylenes of low molecular weight was studied. it was found that the crystalline lattice of branched polyethylene is larger than that of linear polyethylene because of the existence of branched chains. the melting behavior of branched polyethylene is similar to that of linear polyethylene since the branched chains can not enter the lattice. however, the crystalline behavior of low molecular weight branched polyethylene is the same as that of high molecular weight linear polyethylene, but different with that of low molecular weigh linear polyethylene. kinetics theory analysis evidenced that the transition temperature of growth regime of the branched polyethylene is about 20 lower than that of linear polyethylene with the same molecular weight. it may be attributed to the existence of short branched chains
研究了金屬茂催化的低分子量支化聚乙烯和線性聚乙烯的結晶及熔融行為，發現支化聚乙烯的結構與線性聚乙烯相同為正交結構，但晶格略有膨脹.支鏈的存在對熔融行為影響不大，兩種聚乙烯的熔點均隨結晶溫度的升高而非線性增加，表現出低分子量樣品的共同特徵.但支鏈的存在對結晶行為卻有很大的影響，主要是由於支鏈的存在降低了晶體的結晶速率從而影響結晶過程，使得低分子量的支化聚乙烯的結晶行為與高分子量線性聚乙烯的結晶行為相似而與低分子量的線性聚乙烯不同.動力學分析表明，低分子量的支化聚乙烯的結晶生長方式的轉變溫度比同等分子量的線性聚乙烯降低了約20However, the disadvantage of laser welding is the so - called post - weld - shift ( pws ). the end result is a reduction in light coupling efficiency. the shrinkage force generated by the solidification process is so great that no known mechanical structure can counteract the shrinkage from shifting the joint ? at least at the micron level
這種封裝技術最大的缺點是會使激光二極體的封裝產生焊後偏移（ pws ） ，很少有一種機械的方法可以校正這種焊後偏移到亞微米級別，目前激光錘被證明是一種很有效的校正方法，激光錘校正作用過程就是利用金屬熔化凝固冷卻產生的內應力來恢復焊後偏移的過程。In a high - tech submarine with air - conditioned comfort dive to 100 feet to view hawaii s natural ocean reef and the sunken vessel, the sea tiger, live narration available in english, chinese and video show ; guests will understand clearly of what they are viewing
乘坐具有舒適空間及空調系統的潛水艇，深入海底100英尺，觀看巨大沉船珊瑚暗礁火山熔巖和各種美麗的熱帶海底生物。同時有中文解說員和錄影帶播放，協助您體驗真正的夏威夷海底世界。The steel driver cab serving in ha - trains was adopted as the design prototype ; an integral composite driver cab ( icdc ) was investigated and designed in this paper based on the excellent characteristic of the composite materials and the resin film infusion ( rfi ) process technology
本文以正在服役的鋼制哈車（出口哈薩克斯坦）機車司機室為設計原型，在充分發揮復合材料優異的承載性能基礎上，結合樹脂膜熔滲工藝（ rfi ）特點研究設計復合材料整體司機室。The forming - nucleus drive power could form numerous little crystal nucleus under natural melting temperature. the formation of tic particles in the melt could be divided into two phases which was forming - nucleus and growth. the forming mechanism of tic was : melting ti first surrounded c, then ti melting in the alloy and c formed a complicated reaction mesosphere on the carbon surface
根據熱力學及動力學分析，認為在碳顆粒界面處tic的形核率很高，形核驅動力足以在正常的熔煉溫度下形成眾多的小晶核；熔體中tic顆粒的合成可分為形核與長大兩個階段，其形核機制為：首先活性ti原子包圍c ，溶入合金中的ti與c在碳表面形成一復雜反應中間層，隨著反應進行， ti和c顆粒不斷減少，生成的tic不斷彌散分佈於熔體中；其長大過程伴隨著tic顆粒的相互堆砌、聚集和形態規則化。分享友人