金属

To plate metal is cover it with a thin layer of gold,or silver,etc.

电镀 金属就是把金属薄薄地覆盖上一层金或银等。

Objective To study the effect of using screw m ental post and cast post in post crown restoring respectively and bring into com parison.

目的 观察并比较成品金属螺纹桩和铸造金属桩在桩冠修复中的临床效果。

Measurements of sources at cryogenic temperatures pose special problems since the connections between the sample in the cryostat and the voltmeter are often made of metals with lower thermal conductivity than copper, such as iron, which introduces dissimilar metals into the circuit.

测量低温环境下的源时可能会出现一些特殊的问题，因为连接低温条件下的被测样品和电压表时常常要使用一些导热系数比铜低的金属，例如铁等。这样就会在电路中引入不同种类的金属材料。

A metal material which has a thermal expansion coefficient lower than that of the cupper and causes solid-phase reaction with the cupper at a temperature of 400 DEG C or higher is used for the first electrode material.

下述金属材料被用于第一电极材料，该金属材料具有比铜的热膨胀系数低的热膨胀系数，并且在400℃或更高的温度下与铜发生固相反应。

Cobalt (100) face of hexagonal system parallels example surface and the intensity of diffraction peaks increased obviously. Finally the possibility of codeposition of PTFE and cupper or other metal alloys was initially researched.

最后，初步探索了PTFE与Cu或二元合金共沉积的可能性，试验结果显示，它们均可形成PTFE和金属的复合镀层，与无PTFE的金属合金层对比后发现，各复合镀层摩擦学性能都有所提高。

In the titration experiment of NMR and IR spectroscopy, we can understand how sensors binding with metal ions: the two carbonyl group and crown ether group cooperated in binding with metal ions. Furthermore, by altering the "oxygen" atoms of crown ether to "sulfur", we can change the binding affinity to the soft metal: cupper. It shows 60-fold enhancement of fluorescence.

在化合物2中，我们引进了硫原子在冠状醚中，则应对电子密度较低之金属有较好的结合能力，实验结果显示了此分子对铜离子有相当好的选择性和结合能力，萤光增加可达60倍；同时由红外光吸收光谱和核磁共振光谱滴定实验可确知，香豆素衍生物上的两个羰基对金属离子的选择性及结合上扮演相当重要的角色。

Nation and importing metal original material of region, for example:Stainless steel(SUS301, SUS304),Carbon steel(50#, 60#, S45C, S50C, S60C, S65C, SK2, SK4, SK5, SK7), Cube(C17200), the Nie cupronickel (C7521)waits various card number, the metal book material and plank material of different material, thickness scope(0.05 mm~5.00 mm), width scope(3.00~1500 mm) and degree of hardness Class(1|4 H, 1|2 H, 3|4 H and H, EH and SH), the product quality presses the standard of Japan JIS strictly a control.

本公司主要销售日本、韩国、台湾等国家及地区的进口金属原材料，例如：不锈钢（SUS301、SUS304）、碳钢（50#、60#、S45C、S50C、S60C、S65C、SK2、SK4、SK5、SK7）、铍铜（C17200）、洋白铜（C7521）等各种牌号、不同材质、厚度范围（0.05mm ～ 3.00mm）、宽度范围（3.00 ～ 1500mm）、硬度级别（1/4H、1/2H、3/4H、H、EH、SH）之金属卷材及板材，产品质量按日本JIS标准严格控制。

On the basic of it chatter of cutting processes is analyzed by speed feedback and displacement delaying feedback and curial condition of stability cutting is discussed. Secondly, dynamic model of deep-hole drilling system with the two degrees of freedom are established in the light of principles of machining chatter in cutting processes.

本文针对深孔加工系统的特点，首先分析了深孔加工的力学特性，并在此基础上，根据金属切削中的颤振现象，对金属切削过程中由于速度反馈和位移延时反馈所引起的颤振现象进行了分析，并分别讨论了稳定切削的临界条件。

A process for preparing cycloolefin features that in the presence of catalyst slurry containing metal Ru catalyst, water and metallic sulfate, the mononuclear aromatics is partially hydrogenated by hydrogen, and includes a step to control the activity of catalyst.

一种生产环烯烃的方法，该方法是在含有金属钌催化剂、水和金属硫酸盐的催化剂浆液存在下用氢部分加氢单环芳烃进行该方法，其中包括控制催化剂活性的步骤。

But the bump resistance is quite small compared with the resistance of the metallization traces. Therefore, daisy-chain structure cannot detect the slight changes in microstructure in the solder joint.

在铝、铜等金属接点中，孔洞的成核与成长皆可利用电阻的变化来坐标定与观测，可是对焊锡接点而言，焊锡接点的电阻远较一般的金属导线与接点小，所以以往研究电迁移效应时所用的雏菊花环结构无法感测到焊锡电阻随微结构产生的微小变化。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷