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In this paper Laplace transforms is utilized in viscoelastic theory of polymers making the relations between various viscoelastic functions like relaxation modulus , creep compliance and functiqns representing dynamic behavior simple and clear, relaxation spectrum and retardation spectrum are defined in terms of Laplace transform to correlate all viscoelastic functions.

将拉普拉斯变换应用于聚合物粘弹性理论，使粘弹性材料的特性函数如松弛模量、蠕变柔量以及表示动态力学性能的函数之间的关系简单明了，并用拉氏变换定义松弛谱和推迟谱，将各粘弹函数相互联系起来。

The simulative model of temperature field and stress field in concrete , Heat and moisture coupling、Parallel simulative calculation of concrete with water pipe cooling、 Parallel feedback analysis of thermal characteristic parameters, and stress intensity factor of induced joint, which are the sixty-four-dollar questions, are studied in this dissertation. The main contents of this dissertation are as follows:(1)Based on the past and current research work, the calculation theory of the transient temperature field and creep stress field of mass concrete which self temperature influence is considered is deduced. The couple effect between the temperature field and humidity field of concrete, is considered on the basis of conservation law of water and energy, and the coupled formulation which coefficient is not constant of the heat and moisture in concrete is deduced. The calculation theory and model which is theoretically strict for solution to thermal problem in concrete with water-cooling pipes are recommended.

本文主要针对混凝土的温度场应力场仿真计算模型、热湿耦合、水管冷却问题的并行仿真、混凝土温度参数并行反演分析以及诱导缝应力强度因子计算等混凝土大坝温度应力数值仿真的关键技术进行了较为深入的研究，全文主要内容如下：(1)在现有研究基础上，推导了考虑自身温度影响的混凝土非稳定温度场和徐变应力场的计算理论；基于水分质量守恒和能量守恒原理考虑混凝土温度场和湿度场的耦合作用，推导了混凝土的变系数热湿耦合方程，并建立了相应的计算模型；引用严密的水管冷却混凝土温度场的计算理论和计算模型，比较了两种简化计算方法用于水管冷却混凝土仿真计算的不足。

Through indoor tests and field tests this paper has researched the geogrid' s characteristics of application in highway engineering, such as characteristic of intension, creep, endure, damnify in construction etc.. Based on these researches this paper has also researched the working characteristics of contact face between geogrid and soil and the method of geogrid-reinforced slope analysis. Mechanism of geogrid-reinforced slope has been analyzed. In the end , techniques of geogrid-reinforced embankment' s construction has been researched through substantiality of engineering.

文章通过室内、外试验，对土工格栅的强度特性、蠕变特性、耐久性能及抗施工损伤性能等工程应用特性进行了研究；在此基础上，结合室内试验和理论分析对土工格栅与土的界面工作特性和加筋边坡的稳定性分析方法进行了研究，对土工格栅加筋边坡机理进行了分析；最后结合实体工程，对土工格栅加筋陡边坡的施工工艺进行了系统研究。

All in all, under the factors above, the depleted zone in pearlite steel would crack fragilely for formation of creep-flaw in low stress during operating at high temperature before designed expiration date.

异种钢的焊接接头在高温运行中，在高温和应力的作用下，珠光体的脱碳层会产生蠕变裂纹，发生低应力脆性断裂，从而导致接头的早期失效。

The microstructure of MDF and MDF tested were studied. The results showed that the fibers in MDF are arranged randomly. Some of them arranged separately, most of them arranged in bundles. There are many blind holes between the fiber cells in MDF. The damage of MDF's compressive creep is the result of new cranny occuring, spreading and the combination of old cranny. In the repressing process, besides the pressure, heat is also the main factor on the damage of MDF, which can accelerate the adhension layer to deteriorate and lead to the gule strength decreasing.

结果表明：MDF的纤维排列无规则，纤维排列形态除少量纤维呈单根状外，大量的纤维以纤维束的形态排列；纤维之间存在许多大小不等的孔洞，呈不贯通状；MDF蠕变损伤是不断萌生新的裂隙并扩展和合并原有裂隙的结果；MDF二次加工过程中，除了压力是破坏MDF结构的主要因素外，加热温度使MDF胶层老化，胶合强度下降，也是破坏MDF结构的主要因素；MDF的破坏形态除了有纤维拉断外，还有纤维拔出和胶粘剂脱落。

After hears the yellow Jinlong commander in chief's order, already succeeded the hook to live this planetoid the starships, after passed through the very short time, had achieved with the planetoid the similar speed, likely the human rode in the acceleration the airship to be same, starts the anchor chain which back and forth vibrated this time already to pull taut, and started to maintain stably, all starship pilot, already not in the worry planetoid surface more than 1200 degrees high temperatures, the thick fog group which as well as raided intermittently, after received the order then the rapid start automatic hinge machine, to this planetoid superficial fast advancement, in order to set aside the enough debarkation space for the second interspace group,This time by far looks, the entire starry sky scene, looks like a big spider to lead only to creep along innumerably small spider such, has filled the mysterious visual effect, lets the human feel incomparably shocks!

在听到黄金龙总指挥官的命令后，已经成功钩住这颗小行星的星际飞行器们，在经过很短的时间后，就与小行星达到了同样的速度，就像人乘坐加速中的飞船一样，开始来回抖动的锚链此时已经绷紧，并开始保持稳定，所有星际飞行器的驾驶员，已经不在顾虑小行星表面1200多度的高温，以及阵阵袭来的浓雾团，接到命令后便迅速启动自动铰链机，向这颗小行星的表面快速推进，以便给第二星际小组腾出足够的登陆空间来，此时远远望去，整个星空场面，就像一只大蜘蛛带领着无数只正在爬动中的小蜘蛛那样，充满了神奇的视觉效果，让人感到无比震撼！

At the super-low permeable reservior sandstone of Fu and Yang in Daqing Oilfield, many pore throats exist a lot in the types of compacted and restored flakes and curved lamellas while the pore volume of micropore and the thin, compacted and shrunken throat that contribute little to flow take large scale in the total pore space. Thereof high filtrational resistance is caused by much trouble including high content of reservoir shale, serious sensibility to pressure at waterflooding, remarkable effects of undersaturation and water blocks in micropore. A method with laboratory experiment, theoretical confirmation and field application included was adopted to analyze the non-linear flow characteristics, to reveal the deep mechanism of pinhole enveloping macropore and to provide a new technology of improving the development effect. The outcomes aquired are as follows: Multiple cores with different low and super-low permeability were selected to perform seepage experiments by gas, water and oil. Three fields of flow were observed in the reservoir at different low and super-low core permeability. They are pseudo- elastic flow, transition flow and plastic creep flow. So the concept that there was no correlation of rocky absolute permeability with fluid properties that pasted itself was broken up. Two-phase seepage of water displacing oil in uniform super-low permeability shows that the two-phase seepage zone is narrow.

针对大庆油田扶、杨特低渗透油层砂岩孔隙喉道的大小和形态以压实再生型片状、弯片状喉道分布较广，压实、缩小型细喉道型，微孔不可流动的孔隙体积所占总孔隙体积的比例较大的特点；及储层泥质含量高，注水开发中压力敏感性强、微孔隙欠饱和及水锁效应显著，导致流体渗流阻力增大的问题，本文采用室内实验、理论推证和矿场应用相结合的方法，研究、分析了流体非线性渗流特征，更深刻地揭示出小孔包围大孔的机理及产生原因，并提供了改善开发效果的新的技术方法，取得如下成果：选择不同渗透率的低渗透、特低渗透岩心，进行了气、水和油单相渗流实验，揭示出当岩心渗透率不同时，油层内的流体呈现出拟弹性流变、过渡流变、塑性蠕变三种流变区，从而打破了岩心的绝对渗透率与通过岩心流体性质无关的观点；同类特低渗透岩心的水驱油两相渗流实验表明，两相渗流区较窄。

Loading of peak generator units were changed frequently. The fastening bolts of steam turbine cylinder case were in fatigue-creep interaction. It was important to study fatigue-creep interaction damage of fastening bolts under multiaxial stress.

调峰机组频繁调整负荷，汽轮机汽缸紧固螺栓处于疲劳-蠕变交互作用，对紧固螺栓多轴应力下疲劳-蠕变损伤的研究对调峰机组安全运行和维修具有重要意义。

I was now recover'd from my Surprize, and began to look round me, when I found the Cave was but very small, that is to say, it might be about twelve Foot over, but in no manner of Shape, either round or square, no Hands having ever been employ'd in making it, but those of meer Nature: I observ'd also, that there was a Place at the farther Side of it, that went in farther, but was so low, that it requir'd me to creep upon my Hands and Knees to go into it, and whither I went I knew not; so having no Candle, I gave it over for some Time; but resolv'd to come again the next Day, provided with Candles, and a Tinder-box, which I had made of the Lock of one of the Muskets, with some wild-fire in the Pan.

这时，我从惊恐中恢复过来，开始察看周围的情况。我发现洞不太大，周围不过十二英尺，但这完全是一个天然的洞穴，既不方，也不圆，不成什么形状，没有任何人工斧凿的痕迹。我又发现，在洞的尽头，还有一个更深的地方，但很低，只能俯下身子爬进去。至于这洞通向何处，我当然不得而知。当时我手头没有蜡烛，只好暂时不进去，但我决定第二天带上蜡烛和火绒盒进去。那火绒盒我是用一支短枪上的枪机做成的。另外，我还得带一盘火种。

I was now recover'd from my Surprize, and began to look round me, when I found the Cave was but very small, that is to say, it might be about twelve Foot over, but in no manner of Shape, either round or square, no Hands having ever been employ'd in making it, but those of meer Nature: I observ'd also, that there was a Place at the farther Side of it, that went in farther, but was so low, that it requir'd me to creep upon my Hands and Knees to go into it, and whither I went I knew not; so having no Candle, I gave it over for some Time; but resolv'd to come again the next Day, provided with Candles, and a Tinder-box, which I had made of the Lock of one of the Muskets, with some wild-fire in the Pan.

由于我一直生活在危险之中，因而日夜忧虑，寝食不安，这就扼杀了我为使自己生活舒适方便的发明创造能力。如果我坦诚承认这一点，读者一定不会感到奇怪。我当前最迫切需要解决的是自己的安全问题，而不是食物问题。我连一个钉子都不敢钉，一块木头都不敢劈，生怕声音被别人听见；同样，我更不敢开枪了。尤其叫我担心的是生火这件事，唯恐烟火在白天老远就被人看见而把自己暴露。因此，我把一切需要生火的事，如用锅子烧东西或抽烟斗等都转移到我那林间别墅去做。在那儿，我呆了一段时期之后，发现了一个天然地穴，这使我感到无限的欣慰。地穴很深。我敢保证，即使野人来到洞口，也不敢进去。说实在的，一般人谁都不敢进去，只有像我这样一心一意想寻找安全的藏身之所才会冒险深入。

Life. But the intrinsic way of the Internet by wire confines accessing and using of the network information.

然而，Internet固有的有线连接方式大大限制了人们对网络信息的访问和使用。

I have a strong persuasion that this is true .

我坚信这是正确的。