查询词典 tungsten

A series of supported tungsten phosphide catalysts were prepared by the method of temperature-programmed reduction of phospho-tungstate in hydrogen.

本文采用氢气程序升温还原磷钨酸盐的方法，制备了一系列负载型磷化钨催化剂。

Supported tungsten phosphide catalysts were prepared by mixing and co-impregnation method.

并采用各种现代分析手段对合成的无负载和负载型WP催化剂进行了表征。

On the basis of Movable Cellular Automata,the 2D numerical simulation of tungsten alloy armour piercer piercing armour target is done.

用可移动元胞自动机数值模拟方法，对钨合金(93W)穿甲弹侵彻装甲钢靶板进行二维数值模拟。

Firstly, we selected the catalyst for piperidine oxidation reaction, and obtained the compound catalyst of silicon tungsten molybdic acid.

首先就哌啶醇催化氧化合成TEMPO反应使用的催化剂进行筛选，得出催化效果显著的硅钨钼酸与乙二胺四乙酸复合催化剂。

In this thesis, copper, tungsten and lipoic acid are determined by polarography. The mechanisms of electrode reaction are also studied.

本文用极谱法研究了铜、钨和硫辛酸的测定新方法，并比较深入的研究了它们的电化学反应机理。

A preliminary analysis of calibration data shows that the uncertainty of the spectral irradiance measurement in the quartz tungsten halogen lamp and the uncertainty in distance measurement are the major factors of uncertainty in the sphere calibration technique.

初步的定标数据分析显示，石英卤钨灯光谱辐照度测量的相对不确定度和距离测量的不确定度是积分球定标最主要的不确定度来源，可用于紫外波段光谱辐射计的高精度辐射定标，并可以极大地降低定标不确定度。

Lin Jingshan the company's Chief Engineer had personally on three of the heater heating method (commonly known as Little Miss Sunshine) to compare the speed of the hot and cold: The hand on heater in front of about 60 centimeters, to be followed by access to power: iodine-tungsten lamp quartz tube the thermal radiation immediately communicated to the hand; electric heating film about two to three seconds will be communicated to the hot hand; and the hot filament resistance will require more than 6 seconds.

该公司总工程师林景山曾亲自对三种加热方式的取暖器的冷热速度进行比较：将手放在取暖器前方60公分左右，然后依次接通电源：石英碘钨灯管的热辐射即时传达到手上；电加热膜约二、三秒钟将热传达到手上；而电阻丝加热的则需要6秒以上。

The implants made of C/C composite materials are nearly radiolucent, b ut the C/C composite materials containing a small amount of tungsten can be visi ble on radiographs.

炭/炭复合材料作为种植体在X射线下几乎是透明的，通过在炭/炭复合材料中添加金属钨可以解决炭/炭复合材料在X射线下的可视化问题。

The addition of molybdenum enhances the reducibility of co-existing tungsten.

钼的引入促进了钨的还原。

The morphology of obtained deposits were analyzed by means of scanning electronic microscopy. Compared with nickel-cobalt deposits,nickel-cobalt-tungsten carbide composite deposits have refined grain size and increased surface roughness.

通过扫描电镜对镀层形貌进行分析，结果发现，与镍钴合金相比，由于碳化钨粒子的加入，复合镀层晶粒细化，表面粗糙度较大。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。