查询词典 molybdenum

The nitrate reductase is an molybdenum enzyme, molybdenum cofactor is necessary for the activity of nitrate reductase.

所有的硝酸还原酶都是钼酶，需要有钼辅助因子的参与。

The results showed that the decompound ratio of molybdenum disulfide and ratio of sulfur fixation could reach 99.5% and 92% respectively when the reactant ratio n(MnO_2)/n(MoS_2) was 3, reaction temperature was 450℃ and 550℃, reaction time was all 2h, and air flow was 15-20ml/min. The calcine were leached by sulfuric acid when the temperature was 30℃, and the leaching ratio of molybdenum and manganese could reach 99% and 92% respectively.

结果表明，将辉钼矿(MoS_2)和二氧化锰(MnO_2)按摩尔比1：3的比例混合均匀，在管式炉中依次在温度为450℃和550℃下分别焙烧2小时，鼓风量为15-20ml/min，此条件下MoS_2的分解率可达99.5%以上，固硫率可以达92%。

Industry often molybdenite ore melting molybdenum trioxide after the addition of sulfur at high temperature hydrogen and then reduced to pure molybdenum.

工业上经常用辉钼矿石熔烧除硫后的三氧化钼再在高温下用氢还原成纯钼。

A series of molybdenum carbide catalysts were prepared using 20%CH4-H2 to carburize molybdenum trioxide at different temperatures. The catalysts were characterized using X-ray diffraction, X-ray photoelectron spectroscopy and N2-adsorption. Their catalytic performance was evaluated in the model reaction of the dry-methane reforming to synthesis gas. Here, the characteration of bulk and surface Mo2C catalysts and its influence on the catalytic performance were described.

以MoO3为前驱物，于20%CH4-80%H2的混合气体(100 mL/min)中，在不同设定终温下进行碳化，制备了一系列不同碳化终温的Mo2C，通过XRD和XPS等手段进行了表征，并对其甲烷二氧化碳重整制备合成气的催化性能进行评价，讨论了碳化终温作为Mo2C的制备参数，与所制备的Mo2C体相、表面特征和催化剂性能的关系。

Molybdenum carbide catalysts were prepared by temperature-programmed reaction using CH4/H2 gas mixture to carburize molybdenum trioxide at different temperatures, then were characterized with XRD and BET.

以MoO3为前躯体，CH4/H2为还原碳化气，采用自制的程序升温还原碳化反应装置制备出Mo2C催化剂，并用XRD、BET进行表征。

For example, the application of molybdenum trioxide electro-colour glass,molybdenum electrode in mid-alkali glass fiber instead of platinum drawn wire furnace as well as full-electrofusion or ancillary-electrofusion glass furnace and mineral melting.

例如，三氧化钼电致色玻璃、钼电极在中碱玻纤代铂拉丝炉以及在全电熔或辅助电熔玻璃窑和钼电极用到矿物体熔制中的应用等等都相继在提高玻璃质量、增加产量、节能降耗方面取得了显著的经济效益。

objective:to explore the clinical value of digital mammography on diagnosis of small breast cancer.methods:we retrospectively analyzed the representation of molybdenum target x-ray in 40 patients with small breast cancer diagnosed by biopsy.result:the molybdenum target x-ray showed nodosity tumor in 17 cases,calcification in 13 cases,density in 8 cases,focal grand architectural distortion in 6 case,single dilated in 3 cases and blood vessel line thickening in 6 case.conclusions:digital mammography is the most important means in the diagnosis of small breast cancer,which can distinguish between different kinds of breast density of different tissues and find small breast lump.the mammography has a high sensitivity in the diagnosis of small breast cancer.

目的：提高对小乳癌影像学的认识。方法：回顾性分析40例经病理证实的小乳癌患者的x线片。结果：x线表现为肿块17例，钙化13例，致密影8例，局部结构紊乱6例，单支导管扩张3例，血管影增多、增粗6例。结论：影像学是小乳癌诊断的最主要手段，能区别乳房各种不同组织的不同密度，能发现较小的乳腺肿块，对于乳腺癌的诊断，乳腺x线钼靶摄片具有较高的灵敏度。

The thermionic emission properties of rare earth doped molybdenum cathode and impregnated cathode with sub-micron scandia doped tungsten matrix, and the secondary emission property of rare earth doped molybdenum cathode have been studied in this paper.

研究了稀土钼阴极的热发射、次级发射及亚微米结构钪钨基扩散阴极的热发射性能。

The middle-graded layers of the ZrO〓-MoSi〓/Ni-Si-Mo FGM developed compose of the composites containing molybdenum and silicon solid solution nickelbased alloy and molybdenum disilicide dispersed zirconia-based composite.

ZrO〓-MoSi〓/Ni-Si-Mo系功能梯度材料的中间梯度层主要由含Mo和Si固溶元素的Ni基合金和含MoSi〓弥散相的ZrO〓基复合材料组成。

Company covers an area of 20,000 square meters, construction area of 10,000 square meters and capacity for products: Tungsten 500 million meters, par 200 tons of tungsten, molybdenum wire 500 million meters, molybdenum-50 tons, 50 tons of heating, tungsten cerium Electrode 100 tons, 80 tons of tungsten electrodes thorium, magnetron series of 50 tons of molybdenum parts, display series Re tungsten wire, alloy wire, such as 80 million meters, contacts, alloy tool Series 80 tons of material. In 1997 through the ISO9000 quality system certification, the products are exported around the world.

公司占地面积二万平方米，建筑面积一万平方米公司产品和产能：钨丝5亿米、钨杆200吨、钼丝5亿米、钼杆50吨、加热子50吨、钨铈电极100吨、钨钍电极80吨、磁控管钼零件系列50吨、显示器件系列铼钨丝、合金丝等8000万米、触点、刀具系列合金材料80吨。1997年通过ISO9000质量体系认证，产品远销世界各地。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。