防蚀

Combined a large number of on -site investigate and survey data of loess area in the north of Shaanxi Province, the paper analyzed the influence factors and interrelationship of slope erosion, then put forward the main influence factors , the peculiarity of outwash destructions the main style and protective measures about slope erosion of highway in loess area. The first: the emphasis about protective measures of cut-slope are the selection of rate of grade, the place of plain stage of slope, the slope protection; the second: the emphases about drainage of cut-slope is the rational installation and mating of drainage establishment; And following this principle: the effective holding up , the rapid obviating, the smooth articulation, the seepage prevention and prevent erosion.

根据陕北黄土地区公路的大量现场调查和实测资料，分析了公路边坡冲蚀的影响因素及其相互关系，提出了黄土地区公路边坡冲蚀的主要影响因素、冲蚀破坏特点、主要类型与防护对策，得出：1、路堑边坡坡面冲蚀防护重点是坡率选择、边坡平台设置、边坡防护；2、路堑边坡排水重点是排水设施的合理设置与配套；并遵循有效拦截、迅速排除、衔接顺畅、防渗防冲等原则。

They are:1the realization of thermal-protection and seal at the same location,namely the seal performance in the high temperature environment during atmospherical re-entry;2the screen of TPS materials which have a synchronic-ablative characteristic between the glass and adjacent material of the window,to avoid the appearance of steps,and hence the over-heating caused by the disturbing of gas flow;3the analysis and calculation program for distribution of temperature in a complex structure consisting of a series of different materials including transparent materials;and 4the ground test program which can predict the performance of side-view window.

讨论了研制中国栽人飞船舷窗防热和密封结构的几个技术难题：1保证舷窗在返回的高温环境中防热与密封可靠；2保证窗玻璃材料与周围防热材料烧蚀同步，避免出现局部干扰热流；3进行多种异质材料，包括透明材料组成的复杂结构温度场的分析计算；4通过地面模拟试验准确地预测实际飞行条件下舷窗的防热与密封性能。

Thermal protective material should be provided with characteristics of low ablation recession rate, large ablation enthalpy, high thermal shock resistance and little fluctuation in mechanical properties. Carbonous composite is one of ideal materials to survive in such environment and satisfy these requirments.

由于工作环境的特殊性以及防热结构的重要性，防热材料内部的微观结构特征、超高温热物理性能和力学性能的演化规律以及超高温环境下的烧蚀行为，评价结构的可靠性，已成为防热复合材料制造和应用中所亟待解决的重要理论和工程问题。

This model utility has provided the quakeproof corrosion prevention sleeve which one kind of thermos uses, it makes by the elastomer material, divides the wrap bottom and the sleeve two parts.

本实用新型提供了一种热水壶用的防震防蚀套垫，它由弹性材料做成，分套底和套垫两部分。

On the basis of atmospheric corrosion analysis and on the premise of unaltered originappearance of metal antiquity, a novel systematic technology of rust stabilized conversion and corrosioninhibition for archeological iron was developed in this thesis. Model occulted corrosion cell was used to studythe formation of bronze powder rust, its characteristics of pit corrosion and effect factors. The filmingtreatment of azoles composite corrosion inhibitors was used to prevent silver tarnishing, and its anti-tarnishingmechanism was proposed by measurement of electrochemical techniques and Surface-enhanced Ramanscattering.

在不改变文物原状的前提下，本文基于对金属质文物大气腐蚀过程的分析，发展了一种新的铁器文物表面锈层稳定转化与缓蚀保护的系统处理方法，用&模拟闭塞电池&的方法研究青铜器文物&粉状锈&的形成、点蚀特征和影响因素，采用唑系复合缓蚀剂成膜处理技术防止银器文物变色，利用电化学方法、SERS等方法研究并提出了唑系复合缓蚀剂防银变色的作用机理。

Of all the strains,only strains OBS-2 and 1. 936 of Bacillus subtil is showed significantly inhibiting activity on the above pathogens in dual cult...

在田间小区生防试验中，OBS—2菌株水剂浸根＋OBS—2甘蔗制剂处理38d的防效为59.7％，1.936菌株作同样处理的防效为38.8％，蚀脉尖镰孢水剂是根的防效为41.7％。

Results show that w/b is not the factor influencing chloride penetration of ACT concrete, as the ion penetration of ACT specimens is all higher than 2000 Coulombs and can even be poorer than 10000 Coulombs.

致密配比法设计之混凝土，随著水泥浆量V(下标 P少，而拌和水量愈低，添加适量的卜作岚材料及低水胶比的氯离子，电渗量均小於2000 C，甚至低於1000 C以下，呈现出优异的防蚀耐久性。

Various application methods of HJ 20 2 for anti corrosive protection of box shaped hatch covers and rudder blades of large ships were introduced.

介绍了HJ 2 0 2气相防锈剂在船舶压舱盖和舵叶非涂装防蚀保护的使用方法

Watch Sapphire Crystal mirror is not a natural Sapphire, which is made of fine alumina powder as raw material, a reasonable amount of high-temperature in Celsius to Confederate Sapphire Crystal, after numerous operations made watch only pure mirror with Sapphire Crystal, resists wear and corrosion-resistant.

手表上的蓝宝石水晶镜面并非天然的蓝宝石制成，而是由精细的氧化铝粉末为原料，在一定的摄氏高温的炉内结成蓝宝石晶体块，再经过无数工序才制成手表上纯净无比的蓝宝石水晶镜面，具有抗磨损与防蚀效果。

The prevention measures of the oxygen corr...

根据锅炉压力的大小选择不同的防蚀方法。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。