查询词典 molybdenum

Effects of boron and molybdenum fertilizer on plant growth and cell ultra-microscopic structure of Chamaecrista rotundifolia were studied by pot test.

通过盆栽试验探讨了红壤施用不同浓度的硼、钼微肥对圆叶决明植株生长和叶肉细胞超显微结构的影响。

Preparation of the cathode includes:shaping under the press of 40Mpa, sintering at 550℃for 1 hour and at 900℃for 8 hours and threading with molybdenum bar; Considering the literatures we choose CaCl2 as salt for preparation titanium. Pretreatment of salt is for 1 hour at 100℃and for 2 hours at 300℃. Partial pressure of oxygen which need lower than 5.11×10-7Pa to reduct titanium oxides and hygroscopic property of salt need a sealed equipment to electrolyse. And finally successfully designed a satisfied one and the results show that the equipment can be satisfied the requirment of the experiment. Flow of the inert gas is 1.5L/min, the voltage is 2.8 V, temperature is 850℃and time is 2 hours during pre-electrolysis. Flow of the inert gas is 0.2L/min, the voltage is 3.1 V, temperature is 900℃and time changes with the mass of TiO2 during electrolysis, namely the greater need the longer time; To eliminate influence of salt and other impurities, the products need to wash with distilled water and dilute chlorhydric acid , then wash with dilute hydrochloric acid under supersonic wave assistant. Finally, electrometical properties of the electrolysis of TiO2 is researched by cyclic voltammetry and chronoamperometry, and results show that there are two main reodox steps, namely from TiO2 to TiO and from TiO to Ti.

阴极制备主要包括40MPa压力下模压成型、两段式烧结(1小时内升至550℃保温1小时，再1小时升温至900℃保温8小时)及烧结后TiO2块打孔用钼棒串接三个主要环节；实验中选用CaCl2作为电解熔盐，并对其进行预处理(100℃，保温1小时； 300℃，保温2小时)；经热力学计算，还原钛氧化物的氧分压至少要低于5.11×10-7Pa，结合电解过程中所用熔盐CaCl2有极强的吸水性的特点，电解装置应有较高的密封性，自行设计了一套密封性可靠的电解装置，便于实验过程中熔盐预处理和氧分压的控制；通过干燥处理预电解过程中Ar流量大约为1.5L/min、电压为2.8 V、温度为850℃、时间为2小时，电解过程中Ar流量大约为0.2L/min、电压为3.1V、温度为900℃，实验结果表明电解时间与TiO2质量密切相关，质量越大需要电解的时间越长；通过自来水冲洗—稀盐酸浸泡、洗涤—在超声波辅助作用下稀盐酸洗涤，可减少熔盐及其它杂质对电解产物检测结果的影响；最后，通过循环伏安法、计时电流法对电解机理的研究，确定电解还原TiO2制备金属钛主要经历了TiO2-TiO-Ti的过程。

Alloy of polyethylene of element of the methodological freeboard that make, titanium and sample of alloy of cobaltic chromic molybdenum, FITC of classics of cuticular grape coccus labels, the cuticular grape coccus that after sample of artificial and articulatory material is disinfected, vaccinal FITC labels, sample surface cent is slick surface and rough surface, every groups each 6 sample, brood the 24 orifice plate that contain bacterium and sample below 37 ℃ after Yo 30min, with fluorescent microscope observation, sample uses observation of scanning report lens.

方法制作超高分子聚乙烯、钛合金和钴铬钼合金试样，表皮葡萄球菌经FITC标记，人工关节材料试样消毒后接种FITC标记的表皮葡萄球菌，试样表面分为光滑表面和粗糙表面，每组各6个试样，将含有细菌和试样的24孔板在37℃下孵育30min后，用荧光显微镜观察，试样用扫描电镜观察。

Vanadium mainly exists as independent minerals or in clay minerals in the form of isomorphism, with a small amount absorbed by clay minerals and limonite. Nickel mainly exists as independent minerals. Molybdenum occurs as colloidal sulfides with carbon, sulfur and clay, and forms molybdenite through thermal metamorphism. Uranium is unevenly scattered in collophanite and carbonaceous_argillaceous materials in the form of isomorphism or adsorption. REE mainly occur in collophanite in the form of isomorphism. Copper, lead and zinc chiefly exist in sulfides or sulfo_arsenides and are concentrated in the metallic layer.

钒或以独立矿物存在，或以类质同象赋存在粘土矿物中；镍主要以独立矿物存在；钼主要与碳、硫、粘土一起呈钼硫化物胶状集合体，经热接触变质作用后形成辉钼矿；铀呈不均匀分散在胶磷矿和碳泥质中，呈类质同象或吸附状态存在；稀土元素主要呈类质同存在于胶磷矿中，部分呈吸附状态存在；铜、铅、锌主要以硫化物和硫砷化物等存在，多富集在金属层中。

An ordered Si-C alloy was observed in the products resulting from thermal reduction of molybdenum disilicide heating rods.

在硅钼棒的热解产物中发现了一种高碳浓度的Si_(1-x)C_x单晶材料。

Two important routes currently being used to improve molybdenum disilicide mechanical property and oxidation are the alloying approach and the doping approach.

介绍了二硅化钼合金化及掺杂改性的研究进展，对几种重要合金化元素和掺杂元素改性的二硅化钼材料进行了评述，并在此基础上提出了高性能二硅化钼材料研究开发的重点和方向。

Molybdenum disilicide has gained industrial importance due to its high melting point, high emissivity, stable res...

MoSi〓具有高熔点、高发射率电阻老化特性好等特点，并通过产生保护膜而具有较好的高温稳定性，因此该材料在工业领域受到重视。

Molybdenum disilicide has gained industrial importance due to its high melting point, high emissivity, stable resistance over long periods of time and the ability to form a self-healing protective layer, which possesses an interesting combination of thermophysical and mechanical properties and has potential for structural use and heating in oxidizing environments at high temperature.

MoSi〓具有高熔点、高发射率电阻老化特性好等特点，并通过产生保护膜而具有较好的高温稳定性，因此该材料在工业领域受到重视。其实现了材料的热物理特性和机械特性的有机结合，并使材料在高温氧化环境下作为结构材料和电热材料的使用提供了可能。

Molybdenum disilicide(MoSi_2)has excellent resistance properties to oxidation and corrosion at high temperature,but it disintegrates catastrophically during oxidation at low temperature(400～700℃).

MoSi2具有良好的高温抗氧化性，但是低温容易发生&粉化瘟疫&现象。

The main radiation cavity of the furnace consists of a high-purity alumina tube 25cm long x7cmi.d., heated by molybdenum disilicide elements.

加热炉里的主要辐射腔是一条内直径7公分，长25公分的高纯度氧化铝管，由二硅化钼元素加热。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐