查询词典 copper

The forming process for the high-strength, steel-base modified polyformaldehyde composite material in five-layer structure is to melt modified polyformaldehyde by heating and roll to make the melt polyformaldehyde permeate into the gaps between the large-grained spherical copper powder and screw copper nails.

五层结构的高强度钢基改性聚甲醛复合材料的成型过程，是将改性聚甲醛加热熔化，经轧制，使熔融的聚甲醛渗透到大颗粒球形铜粉的间隙中，解决了三层材料复合过程中，熔融的聚甲醛水平流动性远强过垂直方向的渗透性，造成了结合强度低的缺陷，使聚甲醛层与铜粉、螺旋铜钉及基体结合更牢固，提高了其承载和抗剪切的能力。

The forming process for the high-strength, steel-base modified polyformaldehyde composite material in five-layer structure is to melt modified polyformaldehyde by heating and roll to make the melt polyformaldehyde permeate into the gaps between the large-grained spherical copper powder and screw copper nails.

五层结构的高强度钢基改性聚甲醛复合材料的成型过程，是将改性聚甲醛加热熔化，经轧制，使熔融的聚甲醛渗透到大颗粒球形铜粉与螺旋铜钉的间隙中，解决了三层材料复合过程中，熔融的聚甲醛水平流动性远强过垂直方向的渗透性，造成了结合强度低的缺陷，使聚甲醛层与铜粉、螺旋铜钉及基体结合更牢固，提高了其承载和抗剪切的能力。

In addition to electrostatic ion series fan, wind machine, wind Tsui, wind wand, wind Copper Rods, wind screens, copper, wind serpent, wind drum, surface resistance tester, voltage tester, wrist strap tester, wrist / leg band tester, and so on, may provide a good addition to the electrostatic effect of space and surface electrostatic field has a very good and the elimination of functions.

除静电系列离子风机、风枪、风咀、风棒、风铜棒、风帘、铜棒、风蛇、风鼓、表面电阻测试仪、静电电压测试仪、手腕带测试仪、手腕/脚带测试仪、等等，均可提供良好的除静电效果，对空间及物体表面的静电场有极佳的中和消除功能。

See its exterior colours, pure copper have been plunged into the lock and 101,600 general processing and Dutong compared to dark color, but natural; OK its weight, pure copper lock handle heavier, and stainless steel lock visible light; Listen to the voice of its opening, Dutong lock up more boring voice, the voice is very clear stainless steel lock.

看其外观颜色，纯铜制成的锁具一般都经过刨光和磨砂处理，与镀铜相比，色泽要暗，但很自然；掂其分量，纯铜锁具手感较重，而不锈钢锁具明显较轻；听其开启的声音，镀铜锁具开启声音比较沉闷，不锈钢锁的声音很清脆。

This does however make the distilled water more aggressive in the dissolving of light metals such as copper and is one of the reasons copper should not be used to store or plumb distilled water.

但这确实让蒸馏水中溶解的更具侵略性，轻金属如铜，原因之一就是铜不应该被用来存储或垂直蒸馏水。

During static exposure of aluminum, stainless steel, Inconel, Monel, nickel, titanium, steel, copper, beryllium copper, aluminum bronze, maraging steel, and tungsten, no metal exhibited corrosion penetration rates greater than 0.43 mils per year.

在铝、不锈钢、因康镍合金、蒙乃尔铜镍合金、镍、钛、钢、铜、铍铜、铝铜、马氏体钢和钨的静态暴露过程中，没有金属显示出大于0.43密耳每年的腐蚀穿透率。

During static exposure of aluminum , stainless steel, Inconel, Monel, nickel, titanium, steel, copper, beryllium copper, aluminum bronze , maraging steel, and tungst , no metal exhibited corrosion penetration rates greater than 0.43 mils per year.

在铝、不锈钢、因康镍合金、蒙乃尔铜镍合金、镍、钛、钢、铜、铍铜、铝铜、马氏体钢和钨的静态暴露过程中，没有金属显示出大于0.43密耳每年的腐蚀穿透率。

The company was founded in 1993, the company area more than 12 million square meters, existing staff 358 people, technical personnel 52 people, mainly the production of "Tian Shan" brand series of steel ball (0.5 mm -100 mm), stainless steel beads (0.1 mm -- 150 mm), bearing steel ball (0.8 mm -150 mm), hollow ball, copper ball, aluminum ball, the ball of pure zinc, metal-coated ball (chromium, nickel, copper, zinc, gold, silver, etc.), drilling the ball , with an average annual production capacity of 1300 tons, according to GB308 - 89, as well as the United States ANSI / AFBMA standards that will provide you with a range of Products at level 5 -1000 between the aerospace industry are the automotive industry, precision instruments, gauges, motorcycle , bicycles, bearings, medical equipment and food machinery industries ideal accessory products.

本公司成立于1993年，公司面积12多万平方米，现有员工358人，技术人员52人，主要生产&天山&牌系列碳钢钢珠(0.5毫米-100毫米)，不锈钢珠(0.1毫米-150毫米)，轴承钢钢珠(0.8毫米-150毫米)，空心球，铜球，纯铝球，纯锌球，镀金属球(铬，镍，铜，锌，金，银等)，钻孔球，年均生产能力1300吨，根据GB308--89以及美国ANSI/AFBMA标准，可向您提供产品精度范围在5级-1000级之间，是航空航天工业汽车工业，精密仪器，仪表，摩托车，自行车，轴承，医疗器械和食品机械等行业理想的配套产品。

In addition, the dagger, the Middle East-style teapots, Persian style swords and other copper products are worth buying, a lot of copper inlaid precious stones, classic elegance, and value for money.

另外，匕首、中东式茶壶、波斯风格刀剑等铜制品也值得购买，很多铜制品镶嵌了宝石，高贵典雅，且物有所值。

This thesis took the complexes of cupric or cuprous salts with small molecular amines to mimic oxidoreductases. The coordination environment of the active centers of the catalysts can be modified by changing the ratio of copper/amine. The oxidation of naphthols and 2-naphthylamine under the copper amine complexes led to some novel reactions and products.

本文利用简单易得的小分子有机胺与铜盐制成络合物，模拟氧化还原酶，通过改变铜胺配比等因素来调整催化剂活性中心的配位状态，从有机合成的角度研究其对萘酚类和2-萘胺等底物的氧化性质和催化氧化性质，发现了一些新颖的仿生氧化反应和产物。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。