以三乙基铝(茶)和甲基溴为原料,在铁-锑络合物催化剂上反应合成了三甲基铝(TMA)。
Trimethylaluminum(TMA) was synthesized by reaction of triethylaluminium (TEA) with methyl bromide on iron-stibonium complex catalyst.
这个拥有世界五分之一人口的国家,却狼吞虎咽了世界上超过一半的猪肉、国内一半的水泥、三分之一的钢铁和超过四分之一的铝。
The country accounts for about a fifth of the world's population, yet it gobbles up more than half of the world's pork, half of its cement, a third of its steel and over a quarter of its aluminum.
比如微软在芝加哥附近的新数据中心就有三个总容量高达198兆瓦的变电所,和一个小型熔铝炉的电能要求差不多了。
Microsoft's new data centre near Chicago, for instance, has three substations with a total capacity of 198mw, as much as a small aluminium smelter.
为了建造这颗宏观尺寸的量子处理器,耶鲁学者们将铝气化后附着在一块蓝宝石表面,形成两个跨距为三分之一毫米的传导点。
To build their macro-sized quantum processors, the Yale researchers evaporated aluminum onto a sapphire surface to create two conductive spots a third of a millimeter across.
一个可能的原因是,有些人由于从三角肌清除铝的能力受损而形成易感体质。
A plausible possibility is the existence of a predisposed subset of individuals with impaired ability to clear aluminium from the deltoid muscle.
宝马3系敞篷车是首款拥有三段式可折叠铝质车顶的宝马轿车。它比绝大多数车型都更好地处理了上述问题,但也因为需要为车顶腾出空间而无法增加尾箱空间。
The 3 Series convertible, the first BMW with a three-piece folding aluminum roof, deals with them better than most but can't hike the extra space in the rear needed for top storage.
加州大学洛杉矶分校的科学家先找来很细的纳米线,之后在那些纳米线的表面沉积了一层纳米锂铝硅,制造出一种三维结构。
The UCLA scientists start with a field of tiny nanowires. Then they deposited layers of nano-sized lithium aluminosilicate to those nanowires, creating a three-dimensional structure.
三年级时,我喜欢那个时候我们用硫酸铝钾、石块和温水制作水晶,当我们真正做出水晶时,我特别的兴奋。
When we were Year Three, I loved when we went and made crystals with Potassium Aluminum Sulphate and rocks and warm water. I was so excited when we managed to really make crystals.
因为铝离子为正三价,氧为负二价。
Because aluminum ions have charge of plus three and oxygen ions have charge of minus two.
“如果我们单纯生产铝的话,三年就够了,”贝拉先生说,“我们必须要把这种原材料送到某个地方去加工,提高它的价值。”
“In the next three years we'll be long on aluminium,” said Mr Birla. “And this aluminium needs to go somewhere to get value added.”
现在冰岛有三座铝熔炼厂,都是欧洲最大的,并且以后3年里还要再造俩。
Now we have three aluminium smelters, which are the biggest in Europe; and in the space of the next three years they want to build two more.
有人指出,可能有部分个体因清除三角肌内铝的能力受损而更易出现MMF损伤。
It has been suggested that there might be a predisposed subset of individuals with impaired ability to clear aluminium from the deltoid muscle.
与去年2季度相比,伦敦金属交易所在这三个月中的铝交易量平均增长39%。
Aluminum for delivery in three months increased 39 percent, on average, in the second quarter from a year earlier on the London Metal Exchange.
未来几周,陆续公布的第三季度收益报告有可能主导市场行为。 美国铝业公司(Alcoa)将成为首家公布第三季度财报的上市公司,它定于周三盘后发布业绩。
Third-quarter earnings reports might drive market action for the next few weeks, starting with Alcoa's results due after the closing bell on Wednesday.
它结合了碳化硅在表面初始滑移阻力和三氧化二铝的整个厚度。
It combines silicon carbide in the surface for initial slip resistance and aluminium trioxide throughout the thickness.
目前常用的保护钢铁设备的牺牲阳极材料有铝基合金、锌基合金和镁基合金三大类。
At present, the sacrificial anode materials used for the protection of iron and steel, which are based of aluminum, zinc and magnesium alloy.
这只是三氧化二铝的阳光是从。
That's just aluminium oxide that the sunlight is scattering from.
从铝及铝合金的熔体质量、铸造条件和铸造设备三个方面,分析了对铝及铝合金扁锭裂纹影响的诸要素,并提出避免裂纹的措施。
From quality of melting metal, casting condition and casting equipment, the influence factors of crack in aluminium and its alloy slab ingot were analyzed, some suggestion have been drawn out.
结果表明,与硫酸铝相比,三氯化铁可以更好地控制三氯甲烷的生成量,对有机物的去除方面,也具有良好的效果。
The results showed that: compared with that of aluminium sulphate, ferric chloride has priority over aluminium sulphate in controlling trihalomethane formation and organic matter removal efficiency.
镁铝榴石形成于滇东南晚第三纪岩简状的玄武质次火山角砾岩中,角砾岩成分复杂,其中包含有镁铝榴石和铬透辉石等可作宝石材料利用的角砾和晶屑。
The rubbles and crpetals of prrope and chrome-diopsidewhich can be used as gem materials are found in the breccias whose component is very complex.
布朗的三氧化二铝磨料,是融合和凝结着高温条件下,从混合铝土矿和其他材料。
Brown aluminium oxide abrasive is fused and crystallized under high temperature from a mixture of bauxite and other materials.
在水处理中三价阳离子通常来源于明矾(硫酸铝) 。
The usual source of trivalent cations in water treatment is alum (aluminum sulfate).
三聚磷酸铝用于油性漆中,而改性三聚磷酸铝作水性漆效果比较好。
Modified Aluminum Tripolyphosphate is suitable for production of water paint while Aluminum Tripolyphosphate is suitable for oil paint.
利用有限元分析软件ANSYS对新型铜-铝-铜三层复合板内部涡流场进行模拟计算。
The eddy current fields in three-layer copper and aluminum composite plates were analyzed using the software ANSYS.
介绍三聚磷酸二氢铝的性质、合成工艺及应用。
The properties, synthesis process and application of aluminium dihydrogen tripolyphosphate are presented.
球形孔泡沫铝合金力学性能高于多边形孔泡沫铝合金及泡沫纯铝,因而其三明治梁的力学性能最好。
It is concluded that the sandwich beams with core of spherical pore Al alloy foam is excellent for more good mechanics property.
该三水铝石矿具有溶出性能好、冶炼成本低,经济价值高等优点。
The gibbsite is characterized with high digesting rate and low smelting cost and high economic value.
研究表明,红土风化壳剖面自下而上,伊利石、高岭石减少,三水铝石、针铁矿、赤铁矿增多。
The study shows that from the bottom to the top of laterite weathering crust profile, illite and kaolin decrease, gibbsite, goethite and hematite increase.
研究表明,红土风化壳剖面自下而上,伊利石、高岭石减少,三水铝石、针铁矿、赤铁矿增多。
The study shows that from the bottom to the top of laterite weathering crust profile, illite and kaolin decrease, gibbsite, goethite and hematite increase.
应用推荐