腐蚀状态

From the angle of engineering application, this article analysed the corrosion characteristics and damage causes of the current structural used concrete in the region of Hangzhou gulf, on the basis of on-site survey of all the Marine concrete projects in that area. Taking HPC used in Marine as research objective, this article put great emphasis on the influence of the composition cementing material system to concrete performance, and make a preliminary probe into the action mechanism of the composite effects of various mineral materials in improving the performance of concrete by laser measuring size machine and EMPA. Through experiments, the article discussed how chloride ingression in concrete will be effected by such factors as exposure time, chloride binding, environment temperature, stress and cracks conditions; and also analysed the symptoms of these factors in the model of concrete service life prediction by conference to all related research reports both home and aboard. On the foundation of abovementioned research, this paper brought up an engineering model of service life prediction of marine concrete, which is based on chloride-induced corrosion.

本文从工程应用的角度，在对杭州湾地区既有海工混凝土工程作实地调研的基础上，研究分析杭州湾地区既有海工混凝土结构的腐蚀特点和破坏原因；以海工高性能混凝土为研究对象，着重研究复合胶凝材料体系对混凝土性能的影响，并应用激光粒度仪、EMPA等分析手段，就复合胶凝材料的作用机理进行初步探讨；试验研究混凝土暴露时间、胶凝材料对氯离子的吸附、环境温度、应力和裂缝状态等因素对混凝土中氯离子迁移运动的影响，并结合国内外相关研究报导，探讨这些因素在混凝土使用寿命预测模型中的表征；在上述研究基础上，提出以氯离子侵蚀为基础的海工混凝土使用寿命预测的工程应用模型。

I was also serenaded by a hooting owl. Near at hand you could fancy it the most melancholy sound in Nature, as if she meant by this to stereotype and make permanent in her choir the dying moans of a human being —— some poor weak relic of mortality who has left hope behind, and howls like an animal, yet with human sobs, on entering the dark valley, made more awful by a certain gurgling melodiousness —— I find myself beginning with the letters gl when I try to imitate it —— expressive of a mind which has reached the gelatinous, mildewy stage in the mortification of all healthy and courageous thought.

还有一只叫个不停的猫头鹰也向我唱起小夜曲来，在近处听，你可能觉得，这是大自然中最最悲惨的声音，好像它要用这种声音来凝聚人类临终的呻吟，永远将它保留在它的歌曲之中一样，——那呻吟是人类的可怜的脆弱的残息，他把希望留在后面，在进入冥府的人口处时，像动物一样嗥叫，却还含着人的啜泣声，由于某种很美的"格尔格尔"的声音，它听来尤其可怕——我发现我要模拟那声音时，我自己已经开始念出"格尔"这两个字了，——它充分表现出一个冷凝中的腐蚀的心灵状态，一切健康和勇敢的思想全都给破坏了。

Working conditions of drilling string is complex underground, various factors ofteninteract, in the process of drilling, drilling string acts complex movement in drill fluid, drillfluid unavoidable corrupt drilling string because such as oxygen, hydrogen sulfide and manysalts are dissolved in it. At the same time, many cyclic stresses act on drilling pipe, such asflexural cyclic stress, torsional cyclic stress.

钻柱在井下的工作状态是复杂的，常常是多种因素交织在一起的，在钻井过程中，钻柱在溶解了氧、硫化氢及各种盐类的钻井液中作复杂运动，不可避免的受到它们的腐蚀作用，同时还要受到弯曲、扭转等交变应力作用。

Remaining in a pure state uncorrupted by civilization .

质朴的，纯洁的保持纯洁状态的；未被文明腐蚀的来源：词友

Pristine: adj,Remaining in a pure state; uncorrupted by civilization.

质朴的，纯洁的保持纯洁状态的；未被文明腐蚀的

The cyclic loading not only affect the inner part of the material but also the surface state of the corroding surface.

交变载荷不但影响了材料的内部，同时也影响了腐蚀表面的表面状态。

I was also serenaded by a hooting owl. Near at hand you could fancy it the most melancholy sound in Nature, as if she meant by this to stereotype and make permanent in her choir the dying moans of a human being —— some poor weak relic of mortality who has left hope behind, and howls like an animal, yet with human sobs, on entering the dark valley, made more awful by a certain gurgling melodiousness —— I find myself beginning with the letters gl when I try to imitate it —— expressive of a mind which has reached the gelatinous, mildewy stage in the mortification of all healthy and courageous thought.

还有一只叫个不停的猫头鹰也向我唱起小夜曲来，在近处听，你可能觉得，这是大自然中最最悲惨的声音，好像它要用这种声音来凝聚人类临终的呻吟，永远将它保留在它的歌曲之中一样，——那呻吟是人类的可怜的脆弱的残息，他把希望留在后面，在进入冥府的人口处时，像动物一样嗥叫，却还含着人的啜泣声，由于某种很美的&格尔格尔&的声音，它听来尤其可怕——我发现我要模拟那声音时，我自己已经开始念出&格尔&这两个字了，——它充分表现出一个冷凝中的腐蚀的心灵状态，一切健康和勇敢的思想全都给破坏了。

A set of device for simulating naphthenic acid corrosion under high temperature and high flow rate was designed and set up based on the latest research progresses.

基于最新研究进展，设计并建立了一套模拟高温、高流速状态的环烷酸腐蚀模拟装置，可实现原油在450 ℃下以100 m/s的流速冲刷样品的试验条件。

Auxiliary SJT-B is a 10% phosphorosilicate colloidal solution,containing Na+ and K+,SiO2-3 and PO3-4,and pentavalent poly phosphorosilicate chain anion formed from activated SiO23 and PO3-4 and the chain anion can bind Ca2+ and Mg2+,thus inhibiting scaling and metal corrosion.

助剂SJT-B是10%的磷硅酸盐胶体溶液，含有Na+和K+、SiO32-和PO43-等离子，在活化状态下一部分SiO32-和PO43-生成具5个负电荷的聚磷硅酸根链状阴离子，后者可结合Ca2+、Mg2+而形成纳米磷硅酸盐胶态粒子，避免结垢并防止金属腐蚀。

The influence of solution treatment on mechanical properties of bellows was estimated; The corrosion-resistance of bellows was compared at different materials and states; The capability of anticorrosion of two states bellows in high-temperature oxidation and sulphidation environment was analyzed.

本研究讨论了影响波纹管发生腐蚀的介质及影响硫酸露点温度的因素；分析了波纹管固溶处理后表面残余应力的分布规律；评价了固溶处理对波纹管力学性能的影响；比较了不同材料、不同状态的波纹管耐蚀性能及两态波纹管在高温硫化-氧化环境下的抗蚀性能。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。