查询词典 corrosion

The anchor withdraw resistance of the screw spike diminishes with corrosion of the screw spike and aging of the anchor agent on site so as to harm traffic safety.

螺纹道钉锚固抗拔力会因螺纹道钉的锈蚀及锚固剂老化等因素而变小，从而影响列车的安全运行，为解决这一问题对螺纹道钉锚固抗拔力进行分析。

An experiment was conducted using the bond stress of the anchor agent, the corrosion degree of the screw spike and the eccentricity as the variables to test the withdraw resistance of the screw spike. The multiple regression analysis shows that three main factors have influence on the anchor withdraw resistance of the screw spike.

同时，以锚固剂的结合应力、螺纹道钉的锈蚀程度和偏心度等3个因素为变量对轨道螺纹道钉抗拔力进行实验，采用多元回归分析的方法对实验数据进行计算分析。

Satin-finished BG-42steel blades for improver edge-holding ,better corrosion-resistance and greater toughness.

抛光，缎面处理的BG42刀刃钢材，具备更好的防锈性与强度。

Acid rain ; Concrete ; Sand-lime slurry ; Corrosion mechanism

酸雨；混凝土；砂浆；腐蚀机理

Structural improvements in reducing the pump parts with sand contact, such as probability and the probability scaling has played a certain effect, but the pump body material at all times, everywhere in the wear and corrosion can not simply eliminate the problem.

结构的改进在减少输油泵部件与砂粒接触几率和结垢几率等方面起到了一定的效果，但是泵体材料无时不在、无处不在的磨损和腐蚀问题还不能根本消除。

The erosion-corrosion mechanism of AISI1020 in artificial sea water with or without 1000×10-6 silica sand under sudden pipe expansion condition was investigated through weight loss test, surface morphology observation,local flow regime measurements and electrochemical measurements at specific position.

利用新近研制的双相流冲刷腐蚀激光多普勒实验装置，通过失重测试\表面形貌观察、局部流速流态测试和典型部位的电化学测试，研究了突扩管条件下碳钢AISI1020在单相及含砂人工海水介质中的冲刷腐蚀机理。

The erosion-corrosion mechanism of AISI1020 in artificial sea water with or without1000 × 10-6 silica sand under sudden pipe expansion condition was investigated through weight loss test,surface morphology observation, local flow regime measurements and electrochemicalmeasurements at specific position.

利用新近研制的双相流冲刷腐蚀激光多普勒实验装置，通过失重测试、表面形貌观察、局部流速流态测试和典型部位的电化学测试，研究了突扩管条件下碳钢AISI1020在单相及含砂人工海水介质中的冲刷腐蚀机理。

The text is to improve surface protection of NdFeB magnetic material as the purpose of this text, a kind of AlCla-MEIC room temperature molten salt electrolyte is synthesized, the craft of electroplating of the aluminium is studied. At home , layer of pure aluminium is deposited on surface of NdFeB magnet for the first time, and it has better adhesive force and excellent anti-corrosion.

本文以提高钕铁硼稀土永磁材料的表面防护质量为目的，合成了一种AlCl_3—MEIC室温熔盐电解质，利用这种熔盐电解质，开展了钕铁硼稀土永磁材料电沉积铝的电镀工艺研究，在国内，首次在钕铁硼永磁材料表面电沉积出了一层附着力较好，耐蚀性能优良的高纯铝镀层。

Aiming at the corrosion problem of thermocouple used in high temperature salt bath furnace ,this paper has done an experiment on the cathodic protection.

本文针对高温盐浴炉热电偶直接测温的腐蚀问题，进行了阴极保护试验，分析了腐蚀速度随保护电流密度的变化关系。

The project for passenger cars with engine piston aluminum alloy, alloy components through optimal design, rare earth - Modification of phosphorus salt air and bottom melting slabs, metal-cast aluminum piston at the end of riser feeding process, heat treatment process parameters of choice , Nano-Detroit surface coating materials, such as key technology research and development with a density of small, light weight, thermal conductivity, and coefficient of thermal expansion of small, high temperature and have sufficient strength, wear and corrosion resistance , Aluminum piston size and good stability, its integrated technical indicators have reached the leading domestic level.

项目介绍（简介、技术特点、应用范围、市场前景、效益分析及对投资者要求。500字以内）本项目针对乘用车发动机用铝合金活塞，通过合金成分优化设计、稀土－磷盐复合变质处理与炉底透气砖熔炼技术、铝活塞金属型铸造底冒口补缩工艺、热处理工艺参数的选择、纳米级活塞表面涂层材料等关键技术的研究，开发出具有密度小、质量轻、热传导性好、热膨胀系数小，并具有足够的高温强度、耐磨和耐蚀性能、尺寸稳定性好的铝合金活塞，其综合技术指标达到国内领先水平。

Given the language of section 102(2), the Supreme Court's rejection of substantive review under NEPA seems unjustifiable in principle

按照第102条的规定，最高法院否决《国家环境政策法》所规定的实质性复审在原则上似乎是不正当的。

ObjectiveTo explore the effect of variable hip abduction orthosis on children spastic cerebral palsy.

目的探讨髋关节矫形器在儿童痉挛型脑性瘫痪康复中的作用。