腐蚀性的

The traditional catalyst used in acetal synthetic reaction is strong inorganic acid.

文摘：缩醛合成反应的传统催化剂为无机强酸，但由于副反应多、腐蚀性强和易污染环境等缺点，其使用受到限制。

Acrylate polymer emulsions are widely used in the field of optics, physic, biology and chemical engineering etc.

由于丙烯酸酯类聚合物乳液具有优良的耐光性、耐酸碱性和耐腐蚀性，而广泛应用于光学、医学、电子、化工等许多领域。

Weak corrosive sand slurry , slag slurry , As well as the carnality and halogen liquid in the production of potassium foretellers .

弱腐蚀性砂浆，渣浆及钾肥生产中的光卤石。

The decay of authority is causticity and harmful, and it is necessary to know the and necessity and importance of authority restricting and supervising.

权力腐败极具腐蚀性和危害性，我们必须充分认识权力监督的必要性和重要性。

This thesis is based on experiments. By the way of solution experiment and gas experiment I study mechanism invalidation with the two filter materials in the condition of causticity.

论文实验为主，采用了溶液实验法和气体实验法对两种滤料在腐蚀性物质中老化失效的过程进行了研究。

This text passes correctly elm two of Daqing oil field is united --One Song unite person who bury oil pipeline scene to live in environment survey and study, is it take a sample test , environmental corrosivity survey , corrosivity measuring of pipeline and assess of soil to excavate, is it cause person who bury pipeline antiseptic layers of invalid main factor to find out , confirm the environmental grade of corrosion of soil according to environmental comprehensive physics and chemistry index of soil, grasp pipeline antiseptic invalid law of layer , study antiseptic layers of resistivity decay law and to influence that negative pole protect, is it suitable for person who bury antiseptic layer of life-span of the pipeline calculate formulae and actual effect criterion model to propose on the basis of this text, illustrate and simply analyse oil field long to fail person who bury antiseptic layer of surplus ability to work of the pipeline, unite for elm two --One Song unite pipeline antiseptic maintenance of layer , is it put forward science rational suggestion to change.

本文通过对大庆油田榆二联——宋一联埋地输油管道所处环境的现场调研、开挖取样化验、环境土壤的腐蚀性勘测、管线的腐蚀性检测和评估，找出引起埋地管道防腐层失效的主要因素，并根据环境土壤的综合理化指标确定该段环境土壤的腐蚀等级，掌握管道防腐层的失效规律，研究防腐层电阻率衰减规律及其对阴极保护的影响，在本文的基础上提出适用于埋地管道防腐层寿命计算公式和失效判据模型，例证和浅析油田长输埋地管道防腐层剩余工作能力，为榆二联——宋一联管道防腐层的维修、更换提出科学合理的建议。

The construction projects which may induce serious secondary disasters mentioned in this Law refer to construction projects which may, as a result of earthquake damage, lead to flood, fire, explosion, leak of a large amount of hypertoxic or strong corrosive materials and other serious secondary disasters, including such projects as large dams, embankments, petroleum and gas tanks and the facilities storing inflammables or explosive substances, hypertoxic or strong corrosive materials and other construction projects which may induce serious secondary disasters.

本法所称可能发生严重次生灾害的建设工程，是指受地震破坏后可能引发水灾、火灾、爆炸、剧毒或者强腐蚀性物质大量泄漏和其他严重次生灾害的建设工程，包括水库大坝、堤防和贮油、贮气、贮存易燃易爆、剧毒或者强腐蚀性物质的设施以及其他可能发生严重次生灾害的建设工程。

It is found that compared with the untreated glass fiber reinforced unsaturated polyester, the fluoridized FRP"s property of anti-water and anti infirm-acid has enhanced, while theproperty of anti- strong acid, anti-strong alkali and anti-organic solvent hasn"t changed much.The property of anti-acid and anti-alkali of the glass fiber reinforced epoxy resin fluoridizedby 3-(1H, 1H, 5H-Octafluoropentyloxy)-1, 2-Propenoxide has a corresponding increase, but theproperty of anti-organic solvent hasnt changed much.

研究发现，经G-02、G-04处理后的聚酯玻璃钢的与未处理的聚酯玻璃钢相比，其耐水性增强，耐弱酸性也有所增强，但耐强酸性、耐碱性、耐有机溶剂的腐蚀性变化不大；而经环氧丙基八氟戊醚处理后的环氧玻璃钢其耐酸耐碱性都有相应的增强，但是其耐有机溶剂的腐蚀性无太大变化。

By using established analytical methods for determination of elemental sulfur,hydrogen sulfide,mercaptan,disulfide,total active sulfur and corrosive sulfur in Middle East crude oils were conducted Differences between the sum of various types of active sulfur and total active sulfur,the relationship of total active sulfur and total sulfur in the fraction of IBP to 350 ℃,the relationship of total active sulfur and corrosive sulfur,and the distribution of different active sulfurs in the same crude oil and to...

利用已经建立起来的方法对中东原油中的元素硫、硫化氢、硫醇、二硫化物、总活性硫、腐蚀性硫进行了分析，并讨论了不同类型活性硫的加和值与总活性硫的相关性、初馏点至 3 5 0℃馏分中总活性硫和总硫的关系、总活性硫与腐蚀性硫的关系、同一原油中不同类型活性硫和不同原油中总活性硫的分布以及中东原油在硫化合物分布上与哈萨克斯坦原油的差别等问题。

Results show that when exposed to the severe environment of salt lakes, both OPC and APC display poor durability, though HSC shows excellent bittern-freezing-thawing durability, the corrosion resistance against bitterns is not so good, while non-air-entraining HPC shows outstanding performance in both bittern-freezing-thawing durability and corrosion resistance against bitterns, and the performance can be farther improved by adding fibers.

结果表明，在盐湖地区的严酷条件下，OPC和APC的耐久性不好，HSC具有优良的抗卤水冻蚀性，但是其抗卤水腐蚀性比较差，高强非引气HPC具有优异的抗卤水冻蚀性和抗卤水腐蚀性，纤维增强HPC的效果更佳。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了