查询词典 metal

In the metal lurgical industry, hydrogen is used to reduce metal oxides and prevent oxidation in heat-treating certain metal s and alloys.

在冶金工业，氢用于在热处理特定金属和合金时还原金属氧化物和防止氧化。

Rolling skin refers to scarring defects in the rail surface scar skin or ichthyoids Flake metal sheets appear at the production of heavy rail, metal matrix and connected, At the head, the waist and the base the rail the partial adherence metal thin laminated shape incrustation forms.

由在钢轨的头、腰、底部等处局部粘附的金属薄片状疤皮而形成。

In boiler field, proper atomization of high viscosity liquid fuel is the essential assurance to safe .stable and high efficient combustion for boiler; in the propulsion equipment of rockers and turbo jet-propelled engine, the atomization quality of liquid fuel is the precondition to improve combustion efficiency and supply sufficient propulsion; in the field of industrial manufacture, metal powder is made by liquid metal which is impacted by high velocity gas; in the field of agricultural irrigation, the water with certain velocity is used to strike metal disk to make insufflations proportionally to the irrigation field; in the technique of desulphurization and coal gasification, proper design of nozzle is the essential factor to advance the efficiency of desulphurization and coal transformation.

在锅炉领域，高粘度液体燃料的良好雾化是锅炉安全稳定高效燃烧的重要保证；在火箭推进装置、涡轮喷气式发动机中，液体燃料的雾化质量是提高燃烧效率并产生足够推力的前提；在工业生产领域，用高速气流冲击液态金属来制备金属粉末：在农业灌溉中，用一定速度的水流冲击金属圆盘破碎并改变方向实现对灌溉区域的均匀喷洒：在烟气脱硫、煤气化等工艺中，良好的喷嘴设计是提高烟气脱硫效率和碳转化率的重要因素。

The mechanical properties and microstructure of the joints joined by the new developed filler metal and TC18 filler metal were compared,the results showed that only the strength of the joint joined by TC18 filler metal was satisfied,while the comprehensive mechanical properties of the joint joined by the developed filler wire were ideal.

对采用研制的焊丝和采用TC18同质焊材钨极氩弧焊焊接TC18钛合金的接头力学性能及微观组织进行了对比研究，结果表明：采用同质焊材焊接TC18钛合金只能保证接头的强度指标，而采用研制的新型焊丝焊接TC18钛合金，可以保证接头具有优良的综合力学性能。

The complexing properties of compounds 10a, 10b, 11a and 11b toward alkali metal ions were studied by 〓H NMR titration, ESI-MS, UV-Vis spectra, Fluoresence spectra and liquid-liquid extraction. The results show:(1) the 1:1 complexes were formed.(2) The calix-crown 10a, 11a have a higher selectivity for Na〓 ions, whereas 10b, 11b for K〓 ions.(3) The complexing ability toward alkali metal ions was enhanced when the calix-crown have side arm carbonyl.(3) The coordination of alkali metal ions toward phenoxy, carbonyl and crown ethereal oxygens take place by rotation around the carbon-carbon bond of carbonyl and methylene.

六，用〓H NMR滴定，ESI-MS，UV-Vis，Fluorescence，液-液萃取实验研究了10a，10b，11a和11b对金属离子的配位性质，研究结果表明：1）杯芳烃冠醚衍生物同碱金属离子形成了1：1配合物，化合物10a、11a对Na〓具有较高的配位能力，化合物10b、11b对K〓具有较高的配位能力；2）在杯冠醚环的旁边引入带有羰基氧原子的基团作为侧臂参与配位可以加强对碱金属离子的配位能力；3）金属离子分别同苯酚氧，羰基氧，聚氧醚链氧发生了配位，配位过程中侧链基团涉及到了羰基碳与亚甲基碳的碳碳键的旋转过程。

Roast a porcelain hat according to inside hat material different, mainly is divided into Nie chrome the metal alloy roast a porcelain hat, titanium cobalt the metal alloy roast porcelain hat, gold leaf metal alloy to roast porcelain hat and gold deposition to roast a porcelain hat.

烤瓷冠根据内冠材料不同，主要分为镍铬合金烤瓷冠、钛钴合金烤瓷冠、金铂合金烤瓷冠以及金沉积烤瓷冠。

Disclosed are an adhesive composition for a metal foil which comprises a material wherein a tracking resistance test is carried out according to the IEC method by making a thickness of an adhesive layer 30 to 40 mum, using a copper foil pattern with a width of 4 mm and making a distance between electrodes 0.4 mm, then the adhesive layer dissolves out for the first time when 5 drops or more of an electrolyte are dropped thereon, an adhesive-coated metal foil, a metal-clad laminate, a wiring board, a multi-layer board and a multi-layer wiring board using the same.

本发明公开了一种用于金属薄片的粘合剂组合物，它含有一种材料，其中，抗电弧径迹测试是按照IEC方法进行的，粘合剂层的厚度被做成30至40μm，使用了具有4mm宽度的铜薄片图形，并使电极之间的距离为0.4mm，然后，当5滴或更多的电解液被滴加其上时，粘合剂层被首次溶解掉。使用它的一种粘合剂涂覆的金属薄片，一种金属包覆的层压板，一种多层板和多层电路板。

Product Name: ik-415 metal cleaning agents Description: ik-415 metal cleaning agent, is a by the surfactants, additives, anti-rust agent consisting of soluble metal-cleaning agents.

产品名称： ik-415金属洗净剂产品简介： ik-415型金属洗净剂，是一种由表面活性剂、助剂、防锈剂所组成的水溶型金属洗净剂。

The metal pipes with different material and different thickness were acted as the metal-coated in experiment, and the gap between the fiber and the metal-pipe was filled with epoxy evenly.

实验中采用不同材料、不同厚度的金属套管充当金属镀层，光纤与金属套管间的缝隙用环氧树脂均匀填充。

The theoretical and experimental studies on metal-carbon-based hydrogen storage materials in recent years are reviewed in this paper, including metal-decorated carbon nanotubes,C60 and transition-metal-ethylene complexes, and so on.

随着计算材料学的发展，利用密度泛函和量子机制第一性原理研究已知材料储氢性能和寻找潜在的新型优良储氢载体已成为当前研究储氢材料的有效方法。

I can still vividly recall the impressive scenes you gave. You were among my friends and relatives who accompanied me from my house to the seaport and when the porters were slow to show up, you obligingly carried my suitcase for me.

你对我的种种感人情意，使我记忆犹新，那天你随着我的亲友从家里送我上轮船，搬运工迟迟不来，你毅然替我提着皮箱上船。

St. Nicholas became the patron saint of Russia, where he was famous for his red cape, flowing white beard, and bishop's mitre.

圣尼古拉成了俄罗斯人的守护神，在那里，他以身披红斗篷，留着飘逸的白胡须，戴着主教法冠而闻名。