查询词典 high-melting metal

Specialist high performance grinding oil for servere grinding applications of steels and yellow metal s.

特殊的优质高速研磨加工油，适合于钢材和有色金属的重负荷研磨加工。

The yellow metal fell the most in three weeks after a rally to a one-month high.

金价升上一个月高位后急回落，跌幅为三周最大。

The yellow metal's high and low were within the previous session range which technically suggests rather consolidation.

黄金的高点和低点在昨日交易时段内交易，技术分析指出市场正在调整。

The good performance is related to the low work-function metal, Ytterbium, makes the threshold voltage lower successfully and small equivalent oxide thickness by high κ dielectric material.

这些良好的特性是因为拥有低功函数的镱可以成功的将临界电压降低，还有高介电系数介电层闸极可以得到较薄的等效氧化层厚度。

Connector for fiber-optic activities of the zirconium oxide ceramic casing due to a high precision, long life and other characteristics, are gradually replaced by pieces of metal, widely used.

用于光纤活动连接器的氧化锆陶瓷套管由于具有精度高、使用寿命长等特点，正逐步取代金属件，得到广泛应用。

The results indicated that a high volumetric ratio of acicular ferrite in the simulated weld metal can be obtained in case the ratio of manganese and silicon is in a certain range.

结果表明，当Si、Mn比在一定的范围时，焊缝中将出现高比例的针状铁素体；且在大尺寸奥氏体晶粒中的非金属夹杂物上形核，高密度微小的夹杂物(1μm以下)的弥散分布对其形核更为有利。

This study is to investigate the high temperature hot corrosion behavior of aluminide coating and platinum-aluminide coating on Ni-base superalloy MAR-M247. On the platinum-aluminide, aluminide and the base metal, respectively, by the salt spraying method.

本文研究MAR-M247镍基超合金表面经铝化涂层或白金铝化涂层处理后，其热腐蚀效应对腐蚀速率与显微组织之影响，并藉试片质量增加量的变化评估抗热腐蚀的能力。

Through analyzing the growing route of dyes for CD-R and DVD±R, the macrocyclic azotic metal complex is indicated to be an important direction of development as the recording material for high density blue light recordable optical disc.

从CD-R和DVD±R记录材料的发展路线分析，显示大环氮杂金属配合物将是高密度蓝光记录材料的重要发展方向之一。

SO〓〓/M〓O〓 solid superacid was applied to the photocatalytic oxidation of organic pollutants for the first time. Porous SO〓〓/TiO〓 solid superacid catalysts with high specific surface area were prepared by sol-gel method. The photocatalytic degradation of bromomethane was used as model reaction. The influence of impregnation with H〓SO〓 solution on the structure of catalysts and their photocatalytic performance was systematically studied by using X-ray diffraction, X-ray photoelectron spectroscopy, N〓 sorption analysis applying BET method, UV-Vis diffuse reflectance spectroscopy, FTIR spectroscopy, O〓-TPD and photocatalytic activity measurement. The acidity of TiO〓-based catalysts was investigated by Hammett indicator method, NH〓-TPD and IR spectra of pyridine adsorbtion. The mechanism of superacidifing effects on photocatalytic performances such as the photocatalytic degradation rate of bromomethane, apparent kinetic constant and apparent quantum efficiency was discussed.The results indicated that SO〓〓 is combined with metal ions of TiO〓 in a chelating bidentate mode.

本文首次将SO〓〓/MxOy型固体超强酸催化剂用于光催化氧化有机污染物研究，采用溶胶-凝胶法制备了具有多孔性和大比表面结构的二氧化钛基固体超强酸光催化剂SO〓〓/TiO〓，以光催化降解溴代甲烷为模型反应，系统地研究了H〓SO〓浸渍处理对催化剂表面酸性及其气相光催化性能的影响，结合XRD、BET、XPS、FTIR、Hammett指示剂法、吡啶吸附红外光谱、NH〓-TPD、O〓-TPD、紫外可见漫反射光谱等多种表征手段，深入地讨论了超强酸化对TiO〓的改性机理，阐明了引起SO〓〓/TiO〓超强酸催化剂光催化降解溴代甲烷的转化率、表观反应速率常数和表观量子效率变化的本质原因。

producing of metal silicon, casthouse operation, enterprise benefits, high output, good quality, low consumption

这与国外普遍采用的 10 MVA以上容量的工面下功夫，不断提高操作水平。业硅炉相比，突出的弱点是热容量小，热稳定性差，捣好炉前操作

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。