Fine microstructure is beneficial to improving the electric properties of contact materials.
细晶的合金组织有助于改善铜铬触头材料的电性能。
The energy input from arc to contact surface is a decisive factor on erosion of contact materials.
电弧对触头表面的能量输入是影响触头侵蚀量的决定因素。
The main factors were presented which affected the electric properties of the silver tin oxide contact materials.
指出了影响银氧化锡触头材料电性能的主要因素。
In the final, introduces the development and research works of new contact materials in domestic and international.
文章最后还介绍了国内外正在开发和研究的新触头材料情况。
Thereby, study on electrical contact materials which have the strong anti-electrical erosion has important significance.
因此开展抗电侵蚀性能强的电接触材料的研究有重要的意义。
Increasingly, rhodium and ruthenium are being plated over more traditional contact materials to increase the contact life.
逐渐地，铑和钌被镀在传统的接触材料上来延长触点寿命。
Given the importance of the actual contact to the life of the relay, much effort has gone into finding and choosing "good" contact materials.
在明确了实际触点对继电器寿命的重要性后，大量的工作就是寻找和选择一种“好”触点材料。
Melamine is commonly used in food contact materials (e.g. containers, labels, etc.) and can also be used in agriculture production such as fertilizer.
三聚氰胺通常被用于与食品接触的材料（如容器，标签等），并还可用于农业生产，如化肥。
Due to mining stone crusher. it deduces a high degree of automation, do not need artificial contact materials, labor conditions improved greatly.
由于矿山石料破碎机的自动化程度高，不需要人工接触物料，工人的劳动条件大幅改善。
Objective:Graphite furnace atomic absorption spectrometry was established to determine soluble Ba, Cd, Cr and Pb in adhesive for food contact materials.
目的：建立食品接触材料用胶粘剂样品制备方法和可溶性重金属钡、镉、铬、铅检测方法。
The general problem arising from the use of food contact materials derives from their content of substances capable of migrating into the contacted food.
使用食品接触原料所产生的总的问题，是因为它们所含有的物质具有渗透到所接触的食品的能力。
And factors affecting electric erosion, such as circuit parameters, mechanical parameters, contact materials working surroundings, etc., were also introduced.
还介绍了影响电侵蚀的多种因素，例如：电气参数、机械参数、触点材料、环境因素等。
Its comprehensive coverage focuses on printed circuits, integrated circuits, contact materials, semiconductors, wire, bonding, brazing, soldering, and welding.
它的广泛报导集中在印刷电路、集成电路、连接材料、半导体、导线、粘结、钎焊、焊锡和焊接。
When we evaluate the property of contact materials, we should not only compare thier arc time, but also compare thier erosion rate of materials and arc energy.
作为评价触头的性能，不能单一地比较其燃弧时间的长短，尚应全面评价其分断电弧能量和材料侵蚀率。
Some metal elements are often added to silver matrix contact materials to improve their properties, and these elements action on the materials is very important.
在银基电触头材料中通常添加有利于材料性能的金属元素，这些元素对材料的作用非常重要，对各个元素的影响作用作了意义描述。
However, we will use these terms only in relation to food products, meat products, cosmetics, personal care products, food ingredients, and food contact materials.
然而我们将只是在食品，肉制品，化妆品，个人护理用品，食品配料和食品接触材料上运用这些条款。
The study on crack types and their formation mechanisms of silver based contact materials are carried out according to the various currents and various contact closed forces.
根据不同电流等级及不同触头闭合压力，对银基触头材料裂纹类型及形成机理进行了分析研究。
And also, the electric arc erosion of contact materials is engendered by heat effect of arc and other discharge phenomenon during the open and close of electric contact materials.
还发现触头材料的电弧烧损主要是触点在断开和闭合的过程中，产生电弧或其它放电现象的热效应所造成的。
The materials have a good welding resistance, hence they are the ideal contact materials for automatic switches which require reliable welding resistance as well as long electrical life.
对于既要求有可靠的抗熔焊性又要求有较长电寿命的自动开关。是较为理想的触头材料。
The properties of the material, such as density, hardness, resistivity, arc resistance and temperature characteristics, are all similar to those of the silver oxidization contact materials.
当新型无银触头材料的相对密度与银氧化物触头材料的相对密度相同时，两者电阻率相当，而其硬度高于银氧化物触头材料的；
The combined properties of the material, such as density, hardness, resistivity, arc resistance and temperature characteristics, are similar to those of conventional silver contact materials.
该材料的综合性能，如密度、硬度、电阻率、灭弧特性及温度特性与传统的银基触头材料接近。
In this paper, the mechanisms, processing and characteristic of mechanical alloying (ma) are briefly reviewed, and the progresses of the electrical contact materials prepared by ma is described.
介绍了机械合金化技术的基本原理、工艺过程及其特点，阐述了机械合金化(ma)制备电触头材料的研究进展。
The mechanisms of crack propagation and the surface deformation phenomenon of silver-based contact materials are investigated based on experiments carried out and theoretical analysis in this paper.
本文在大量的实验和理论分析的基础上，研究了银基触头材料表面的形变现象—裂纹的扩展机理。
It is transmitted between animals and humans by the bite of infected fleas, direct contact, inhalation and rarely, ingestion of infective materials.
它通过受感染跳蚤的咬伤、直接接触、吸入和极少摄入传染物在动物与人之间传播。
They compared how these organisms behaved when left in contact with different materials.
他们比较了这些有机物在接触不同材料时如何表现。
Hospital staff who come into close contact with patients or contaminated materials without barrier nursing attire must be considered as contacts and followed up accordingly.
在没穿隔离护理服的情况下与患者或受感染材料密切接触的医院人员必须被视为接触者，并给予相应关注。
Understand who the speakers will be at the event and how you might contact them or access their materials in advance of or after the event.
要弄清楚活动的发言人都有谁，和他们接触的途径，以及怎样在会前或会后了解到他们的信息。
If any further advice or materials are required on this subject, please contact the author directly.
如果需要对这个主题有任何更进一步的建议或需要更多的材料的话，请直接与作者联系。
This includes practical items such as study materials, old class notes, favorite textbooks or pens and even the contact details of previous teachers.
这包括一些实用的东西，例如学习资料、以前的课堂笔记、喜爱的教科书或钢笔，甚至是以前教过你的老师们的详细通讯方式。
This includes practical items such as study materials, old class notes, favorite textbooks or pens and even the contact details of previous teachers.
这包括一些实用的东西，例如学习资料、以前的课堂笔记、喜爱的教科书或钢笔，甚至是以前教过你的老师们的详细通讯方式。
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