查询词典 lead

The results show that the torsion energy and van der Waals interaction energy are the main types of energy and the substitution group has a great effect on the total energy of molecular. The aliphatic substitution would lead to the increase of total energy, while the aromatic substitution would lead to the decrease of total energy. The calculated results of bond length show that the bond length of aliphatic C—C is longer than that of aromatic C—C, which indicates that the rupture of aliphatic C—C is easier than that of aromatic C—C on heating.

研究结果表明，扭转能和范德华能是分子中的主要作用力，取代基对体系能量有明显影响，烷基取代基使体系能量增加，而苯基取代基使体系能量降低；脂肪C—C键长比芳香C—C键长长，说明脂肪C—C在受热过程中比芳香C—C更容易断裂分解。

Due to transportation and other infrastructure construction accelerated, 2003 Beijing real estate market will highlight such a trend : the distance will lead to the weakening of the regional differences and characteristics of the products will lead to the strengthening of regional differences.

由于交通等基础设施建设的加快，2003年北京房地产市场将凸显这样一个趋势：由距离导致的区域差异将弱化，而由产品特征导致的区域差异将加强。

Stairs lead up to first floor and spiral stairs lead down to basement bedroom.

楼梯通向第一层，而盘梯通向地下卧室。

"Lead 铅",33,Lead in solders for the soldering of thin copper wires of 100 μm diameter and less in power transformers.

EC 涉及电源变压器中直径100微米及以下细铜线所用焊料中的铅

Sichuan Nico State-run New Materials Co., Ltd.- to lithium, cobalt, copper, nickel, lead, zinc, molybdenum, silver mining, elections, Metallurgical, chemical-based industry. In Sichuan, Jiangxi, Tibet, Qinghai and other places have a more than mine and smelting plant, is an important lithium, cobalt, copper, nickel integrated production base. The corporation has an annual production capacity of 3,000 tons of lithium hydroxide, lithium carbonate 2000 tons, 1,500 tons of electrolytic nickel, copper and electrical copper 5000 tons, 500 tons of lithium cobalt oxide, cobalt and cobalt board 500 tons of salt, lead and zinc concentrate, 20,000 tons, MOLYBDENUM 1200 tons, 26 tons of silver production scale, product widely used in petrochemical, aerospace, automotive industry, high-energy batteries, pharmaceuticals, ceramics, aluminum and other industries areas, in national economic development plays an important role in promoting.

公司业已形成年产氢氧化锂3000吨、碳酸锂2000吨、电解镍1500吨、铜粉及电铜5000吨、钴酸锂500吨、钴板及钴盐500吨、铅锌精矿20000吨、钼精矿1200吨、白银26吨的生产规模，产品广泛应用于石油化工、航空航天、汽车工业、高能电池、医药、陶瓷、炼铝等行业领域，在国民经济发展中起着重要推动作用。

Comprehensive recovery of gold ; silver ; copper and lead ; oxidation leaching copper in ammonia solution ; leaching lead with nitric acid ; leaching gold and silver with cyanide

中国科学院化工冶金研究所；黄金， GOLD ，编辑部邮箱 1997年 05期综合回收金、银、铜、铅；氧化氨浸脱铜；硝酸脱铅；氰化提取金银

The heart of a LED is a semiconductor chip of which one side is attached on the top of an anvil that is the negative power lead, and the other side is connected with a whisker to a positive power lead. It is the most important part of the LED, and it is entirely encapsulated in an epoxy resin enclosure.

LED的心脏是一个半导体的晶片，晶片的一端附在一个支架上，一端是负极，另一端连接电源的正极，使整个晶片被环氧树脂封装起来。

When high temperature superconductor current lead quenches, shunt carries the currents, so its material option can affect operation cost of HTS current lead.

当高温超导失超后其电流由分流器承载，分流器材料的选择将影响电流引线冷端热负荷和运行费用。

"Lead 铅",31,Lead oxide in seal frit used for making window assemblies for Argon and Krypton laser tubes.

EC 用於氩和氪镭射管防护窗组合件的封装玻璃料里的铅的氧化物。

For example, every rivet or screw in the junction are a lot of pressure on the media, and this may lead to material deformation or damage, the hole in the material may also lead to leakage or loose, together with mechanical fasteners are visible position, to have it hidden, or to identify the surface rendering, we will encounter some difficulties.

比如，每个铆钉或螺钉在连接处都对介质有很大压力，也许能导致材料变形或损坏，在材料上打孔也可能导致泄漏或松脱，再加上，机械扣件都是在显眼的位置，要把它掩藏或给标识进行表面绘制时就会遇到一些困难。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。