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The isomerization principle of independent double bonds of unsaturated fatty acids from Chinese featural arboroid oils-stillingia oil was first studied in the paper in China. The synthesis principle, properties of products and practical experiment of the derivatives of conjugate acids were also discussed.

本文以中国特产木本油脂—梓油为原料,在国内首次对油脂不饱和脂肪酸孤立双键的异构化反应规律进行了系统的研究,并以异构化反应所得共轭酸为原料,对共轭酸衍生物系统产品的合成规律、产品性能及应用性实验进行了一定程度的探索。

The fourth chapter talks about the weft carrier, in this part, we mostly introduce the big gripper shuttle in the comparative way and not only analyze the structure but also analyze the stress of the fatigable parts. In the fifth chapter, the shuttle box is our research emphasis, we start with the design principle and analyze its structure and the logic of the action of the parts. The sixth chapter discusses the shoot mechanism, builds its theory model and analyzes its law of motion from the view of kinematics and kinetics during the wefting. And then, we can consider the hydraulically shoot mechanism and comprehend its principle and some special parts. Subsequently, the content is about the flying of a shuttle, because the course of the flying of a shuttle is very complex, it is necessary to study the shuttle according to mechanics and to analyze its course of motion and its change of speed from the view of energy.

第五章谈的是梭箱,这部分从梭箱的设计原理入手,从结构的角度对梭箱进行分析,考虑到梭箱上各执行件间的动作存在一定的逻辑关系,还对执行件动作时间与控制作出论述,从中可以看出重型宽幅织机所独有的特性;第六章论述投梭机构,先构造出投梭机_重型宽幅织机引纬机构与梭箱的设计_构的弹性理论模型,从动力学的角度剖析投梭规律,随后分析液压式投梭的工作原--理和一些特型元器件;第七章论述梭子的飞行运动,考虑到梭子飞行运动的复杂性,我们把梭子飞行运动划分为三个阶段,然后分阶段介绍其运动规律,在对梭子进行_运动分析的同时还详细分析它的受力情况,在这一章的最后,我们对影响梭子飞行_的因素也作出了讨论;顺沿这一过程,即是第八章对制梭机构的论述,在这一部分,、主要研究制梭过程与制梭力的情况,同梭子飞行过程一样,制梭过程也分为三个阶段,就每个阶段而言,我们都对其进行受力与运动方面分析,同时也就一些容易出现的问题作出讨论;最后两章是对纬纱交接机构和纬纱的退绕与张力控制作出讨_论,鉴于这两部分不存在复杂的动力学方面的问题,论述重点便放在结构与原理的分析上面,包括分解纬纱交接机构,解析其动作过程,介绍储纬与纬纱张力的一些情况。

Nor is it a set of ossified formulas to follow.The law of history has been developed in the process of human historical experience...

历史规律不是先于或外在于活生生的人的实践活动的神秘之物,而是在人的历史实践活动中形成的本质的、稳定的联系;由于在历史转变为世界历史时代各民族之间的相互作用,造成了作为历史主体的人的能动选择的广阔空间,各民族的发展道路呈现出多姿多彩的形式,历史发展的普遍规律并不等同于各民族的特殊发展道路。

The result showed that:the averaged content of organic C in the vegetable field siol of solar greenhouse was 21.6 g/kg,higher than that in the open field soil by 77%.

日光温室土壤有机质、碱解氮的积累规律不明显;速效磷、速效钾、电导率、pH与棚龄间有明显的累积规律,其相关系数分别为0.7368,0.60,0.6547,-0.7206。

In hydrological modelling one of the most common and significant challenges faced is the reduction of uncertainty in estimation and calibration of model parameters,especially how to estimate parameter values for ungauged basins and simulate the hydrological effects of basin development scenarios and water usage practices.

目前应用较为广泛的模型多为集总式模型。但是,集总式水文模型有很多缺点,如不能反映实际暴雨洪水产汇流的空间分布特性,无法全面的刻画水文系统分散输入集中输出的产汇流规律等。因此为了研究和解决变化环境中的水文水资源问题,评估和检测流域的径流过程和水资源量的动态变化规律,实现水资源的可持续利用和发展战略,必须开发研制有物理基础的分布式流域水文模型。

Suddenly natural disasters in geology,astronomy and other areas are unconventional phenomena in the irreversible and unrepeated specific system because of the limitations of human awareness level and the inexorable rules of science logic.

由于人类认知水平的局限与科学逻辑的必然规律,地质、和其他领域的突发自然灾害是不可逆与不可重复的特定系统中不可过渡到全称规律的非常规现象。

The geology research of carbonate reservoirs in Ordovician of Tahe oilfield showed that many large dissolved vugs and fractures were developed. The spread of the reservoir take on a very heterogeneous state. And the typical fractured-vuggy reservoirs was formed. According to the combination of the various spaces, the formation was divided into vuggy formation, fractured-vuggy formation and fractured formation. The research showed that development of the vug is relevant to the its position on the structure, the fractures, the water surface and the weathering surface. Multi-phase charge and recharge of the oil in the reservoirs resulted in the complexity of the fluid distribution. So the"Bottle Model"was brought forward to explain the movement of the water-oil contact. The special storage space and the complex fluid distribution lead to the unstability of the production and the complexity of the water cut. In order to explain the characteristic of the fracture-vug unit was brought forward and the basic principle and method of the partition of the fracture-vug unit was formed. The classification and evaluation of the units were performed according the reserve and energy. Based on the research of geology characteristic and the fluid flow in the reservoir the comprehensive numerical simulation plan of the fractured-vuggy reservoirs were established. Through the selection of the simulation unit, fluid flow type and parameter equivalent the triple media reservoir simulation model was established. Considering the practical application the model was resolved by the DKR decomposition conjugate grads method. Based on the fine reservoir description of Dsitrict IV of the Tahe oilfield the various space type were classified and combined together. The geology model of Unit S48 was constructed. Two typical single well model was established according to the geology and the dynamic phenomena. Finally the single well model and the Unit S48 were simulated by the triple media reservoir simulator. Via the local grid refinement and coarsening in the simulation good matchs were gained. Based on the results of the simulation the reserve distribution, percent of reserve produced in various space and the natural energy were analyzed. The fluid was storaged in the fractures and vugs mostly and more than 90% the produced oil came from the systems. The energy belonged to the active one. The results of simulation accorded with the fact and showed the validity and practicability the research and the simulator.

塔河油田奥陶系碳酸盐岩油藏的地质研究表明,其储层中发育着很多大型的溶蚀洞、缝,储层的平面展布呈现出极度的非均质性,形成了典型的缝洞型碳酸盐岩油藏,根据各种孔隙介质在储层中的组合,将储层分为了溶洞型、裂缝-溶洞型和裂缝型三类;研究表明溶洞储层的发育和构造位置、裂缝的发育、潜水面和风化面的位置等因素有关;多期充注的油气成藏模式导致了流体复杂的赋存状态,由此提出了所谓的&瓶子模型&,解释生产过程中油水界面的变化;特殊的储集空间类型和流体分布特征导致油田在开发过程中表现出很大的不确定性和含水变化的复杂性,为了合理的解释油气田开发过程中的动态特征,提出了&缝洞单元&的概念,并制定了&缝洞单元&纵横向划分的基本原则和依据及划分方法,并对&缝洞单元&进行了分类和评价;基于地质特征和流体在其中流动规律的研究,提出了缝洞型碳酸盐岩油藏的数值模拟综合解决方案,通过模拟单元的选择、流动类型和参数的等效,建立了三重介质油藏三维三相数值模拟模型,采用不完全LU分解预处理共轭梯度法进行了求解;在塔河油田4区精细油藏描述的基础上,将各种类型的孔隙空间进行了归类组合,建立了S48单元的地质模型;通过对油井生产动态进行分析研究,建立了两类和油井地质、生产动态相对应的单井模型;最后应用三重介质油藏数值模拟软件对单井模型和S48单元进行了数值模拟,通过局部加密和粗化等技术模拟流体流动规律,取得了很好的拟合效果;结合数值模拟结果,分析了各种介质中的储量分布、储量产出的百分比以及地层的能量,认为塔河油田缝洞型油藏中流体绝大多数储集于缝洞系统之中,所产出流体90%以上也来自于缝洞系统,其底水能量属于较充足的类型;模拟结果和油田实际情况符合较好,说明了地质研究和油藏数值模拟研究的正确性。

For the problem of the ratio of inner to outer diameter of long tube, according to the "residual core" in the target plays an important role in DOP of long tube penetrator, the analytical model of long tube pentration in semi-infinite homogeneous steel target is established and calculated to devide three kinds of different scopes, the rule of varied by the ratio of inner to outer diameter is analyzed. The patterns of penetration of the yawed tubular against a normal homogeneous semi-infinite target is established, the size and direction of "residual core" is analyzed, under the different impact yawed, the regularity of variations in the yawed of the tube and depth of the penetrateion is described during the penetrateion against the plate.

二是对于长管体的不同内外径比,依据长管体时形成的中间&靶芯&是其侵彻机理不同于长杆体的重要因素,分三种情况建立了长管体对半无限均质靶板的简化理论模型,并进行了分析,得出了穿深随内外径比变化的规律;描述了带攻角长管体垂直侵彻半无限厚靶的物理图像,分析了&靶芯&力的大小和方向,建立了侵彻简化模型,给出了在不同的初始攻角条件下,管体在侵彻过程中攻角和穿深的变化规律。

With the discussion of the generation between sculpt charcoal drawing and art design ,this article show the idea that art design shouldn't interfere in the charcoal drawing too much.

造型基础课程的教学应遵循造型规律和艺术规律来进行训练,而不应牵强地加入一些设计思维的样式,即所谓&设计素描&。

When I look at your heavens, the work of your fingers,/ the moon and the stars that your have established…"(Psalms 8: 3) All things are regular."Explosion theory believers think that all things come forward in explosion; either the sun or the moon came forward in explosion. But as we know, things coming forward in explosion are irregular. On the contrary, the motion of all things is so regular, which cannot have been the result of explosion.

我观看你指头所造的天,并你所陈设的月亮星宿……&(诗8:3)的确,万物的存在有其规律,相信&爆炸说的人认为宇宙万物是由爆炸产生的,1个太阳、1个月亮都是爆炸的产物;而实际上我们知道,爆炸的产物是无规律的,而宇宙万物的运行是如此有规律,根本不可能是爆炸产生的。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力