上电

The physical and chemical properties of Vulcan XC-72 carbon and Pine carbon were measured with several analysis techniques.

利用多种分析手段，系统比较了VulcanXC-72炭和上海松木炭的物理、化学性质对Pt/C电催化剂性能的影响。

Walk right up to it and get in (but note the onscreen directions to learn how to throw a Stun Punch for future reference).

步行的权利，直至它和得到的（但请注意屏幕上的指示，以了解如何投掷一支电冲床以供日后参考）。

The writer gives some advice and measures on the basis of analysis and calculation to the two wattless circumfluences existed in Gansu Power Grid.

笔者对甘肃电网内两个电磁环网进行计算分析的基础上，提出了结论性的建议和措施。

In this test the motor power is indicated on a wattmeter but the major part is backed off electrically.

在这项实验中，马达功率指示在瓦特表上，但是其主要部分被电补偿。

The products involve mainly in the area of Automation Technology and Building Installation Technology, especially in BIT area Wieland Electric is the inventor of high- and low-voltage pluggable cable/ wire interconnection technology.

特别是在照明与建筑安装技术领域，威琅电气是强弱电综合布线插拔式联接技术的发明者，其技术在世界上为业界中的先驱。

Although we should avoid wordiness in writing letters, we are justified in giving full details and even in repeating ourselves in order to assist the reader.

可但是，当我们打一个电话或者电报时感觉上必须压缩要传递的信息，避免众多详细信息然后尽快收线。

Piezoelectric properties of materials can also be produced by artificial methods, that is, with iron power to impose polycrystalline material of an electrostatic field, such material is commonly used in barium titanate and lead zirconate titanate.

材料的压电性能也可以用人工的方法产生，那就是在具有铁电多晶材料上施加一个静电化场，这类材料中常用的是钛酸钡和锆钛酸铅。

Using the one-atom theory, the electronic structures of Pt-electrocatalyst with fcc structure was determined as follows:(5dn)6.48 (5dc)2.02 (6sc)1.48(6sf)0.02. Compared to the result obtained by the first-principle method such as FP-LMTO, CASTEP, their results are in good agreement with each other. Comparing the calculations of physical properties such as lattice constants, cohesive energy and bulk modulus by OA method and first-principle method, the result obtained by OA method is in excellent agreement with experimental value, but the result obtained by first-principle method is not accordable. The relationship between the electronic structures and catalytic performance was explained qualitatively by OA method and first principle method according to its electronic structures. Because the d-orbital vacancies increases and static density is high around Fermi energy band, Pt has good catalytic performance.

摘 要：依据纯金属单原子理论确定面心立方结构电催化剂Pt的电子结构为(5dn)6.48(5dc)2.02-(6sc)1.48(6sf)0.02，与采用第一原理的FP-LMTO和CASTEP等方法所计算的电子结构相比较，其结果非常相近；由OA理论和第一原理方法计算的晶格常数、结合能、体弹性模量等物理参数进行比较，OA理论计算的结果与实验值较符合，而第一原理方法计算的结果与实验值相差较大；在此基础上用OA理论和第一原理方法研究了Pt的电子结构与催化性能的关系，由于d带空穴增多和费米能级附近态密度较高，导致金属Pt的催化性能很好。

While in the media of pH=3.96 Mcllvaine buffer solution and pH=7.48 KRPB buffer solution, the adrenalinequinone which is the primary electrode product of the adrenaline can take part in a series of the following chemical reactions and the final electrochemical oxidation product is adrenochrome.

肾上腺素红在电势为O伏左右时，又可进行氧化还原反应，从而在循环伏安图上又相应有一对氧化还原峰。

In this study, collagen connected titanium plates were evaluated in vitro. The titanium plates were treated by glow discharge with allylamine.

钛金属表面先以丙烯胺电浆处理，使附著上胺基(-NH2)，再分别以不同浓度的交链剂BS3及戊二醛连接固定第一型胶原蛋白。

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