查询词典 boundary layer

The technology of oil flow and silk thread can reflect effect of the vertex generators controlling the boundary layer separation of the wing truly.6 The single hot line doesnt fit for the measure of the three-dimensional boundary layer downstream of the vertex generators, according to the result of the flow visualization.

油流和丝线流动显示技术可真实反映涡流发生器对机翼附面层分离的控制效果。 6根据流动显示结果，指出单丝热线不适合用于涡流发生器下游具有较强_维流动的附面层测量。关键词：涡流发生器，超临界机翼，附面层分离，控制，风洞实验

The study of natural fullerenes is a new area of across fullerene science and geological science. So far natural fullerenes have been found in shungite, fulgurite, carbonaceous conglomerates in impact crater, E/K boundary carbonrich clay rock layer, T/P boundary layer, dinosaur eggshell, coal, heavy crude oil, solid bitumen and socalled seminatural fullerenes in common soots, Chinese ink sticks, commercial char, et al., only with low concentrations.

天然富勒烯研究是富勒烯科学和地质科学相交叉的一个新兴研究领域，迄今为止已在桑加岩、闪电熔岩、陨石撞击坑中的含碳质角砾岩、古近系/白垩系地层界线的含碳粘土岩、三叠系/二叠系界线岩石、恐龙蛋壳、煤、重质油、固体沥青以及半天然的烟灰、木炭、书墨等物质中检测到富勒烯的存在，但含量很低。

Boundary layer flow state of the relationship between how much air power, especially the emergence of boundary layer separation, or

就会分离。附面层内的流动状态如何与空气动力关系极大，尤其是附面层出现分离后，升

This paper is a part of the "Studies on characteristics of acidrain subsidence and its prevention,"adout the weather feature in Qingdao area. It lays emphasis on both boundary layer pollution meteorological characters and acid causing substance sources.It points out that boundary layer has special nature in Qingdao.

青岛地区酸雨成因研究表明，青岛市近代工业发展排放大量致酸物质、海洋上天然排放的二甲基硫是重要的原因；青岛地区边界层风场和温度场的特殊规律是形成酸雨的另一个重要原因；江淮气旋和黄淮气旋大型天气形势起了辅助作用。

Besides, there exists the third class time boundary layer, i. e. inner time boundary layer, and inside it, the system can be treated as a adiabatic non-dissipative system.

此外，系统还存在第三类时间边界层，即内时间边界层，这时可以将系统处理成绝热无摩擦系统。

The evolution process under the control of the multigeodynamic force system (including the boundary forces of Eurasia-Pacific-Indian three massive plates around Nansha block, effects of the deep mantle, relative soft layer-sliding planes within Nansha lithosphere block and the earth's rotational inertial force) can be briefly divided four stages: the late Cretaceous to the early Eocene stage of uprilfing-erosion and shear-extension caused by the oceanwards-eastwards withdrew of Pacific subduction zone and the delamination of proto-subducted slab after the stage of pre-Cretaceous pre-rifting active continentoceanic plate margin. In this stage, the Nansha transcrustal layering-block started to move southeastwards on the Nansha transcrustal layer-sliding plane, meanwhile, the Andu-Bisheng and Liyue-Banyue basement layering-block slid on their upper-crust layer-sliding planes, and Xibu accretion zone was formed. Successively, it entered the stage of the mid-Eocene to early Oligocene, when NW-SE sea-floor spreading occurred in the southwest subbasin owing to the slip-line field initiated by the collision between the Indian and Eurasian plates, Zengmu foreland-basin started to develop in the same time. And in the stage of late Oligocene to early Miocene, near NS simple-shear extension and sea-floor spreading in the central subbasin of eastern South China Sea resulted from the south-southeastwards drawing-force of the mantle-flow. The crustal layering-blocks and the Miri accretion zone formed also in this stage.

南沙岩石圈新生代微板块及板内层块构造的动力演化过程，在多元动力等因素(如块体之外的欧-太-印三大板块运动边界力和地幔深部活动因素、块体内部软弱层滑面以及地球自转变化)控制下，大致经历了4个阶段的演化：从前晚白垩世的裂前活动陆-洋板块边缘阶段因太平洋俯冲带向东跃迁、原向NNW俯冲消亡的板片的拆沉、幔隆而进入晚白垩世-早始新世的隆升剥蚀、剪切伸展演化阶段，南沙超壳层块顺超壳层滑面祥东南运移、安渡-毕生与礼乐-半月基底层块沿上壳层滑面拆离，西布增生带形成；继而先后在中始新世-早渐新世期间受印-欧板块碰撞滑线场、地球自转加速影响出现西南海盆NW-SE向海底扩张和曾母前陆盆地的发育，和晚渐新世-早中新世期间南—东南向地幔流牵引造成的中央次海盆近NS向单剪伸展与海底扩张、壳体层块向南差异滑移、米里增生带形成；中中新世以来，印度-澳洲板块快速向北俯冲，构成今日南海格局。

When the gas flux is constant, the ratio of reduced resistance is improved with the increase of the water stream velocity. However, the relationship between the gas flux and the ratio of reduced resistance is more complex. When the water stream velocity is constant, if the gas flux is small in contrast, the effectiveness of reduced resistance is not obvious. But when the gas flux increased, the jetted gas will form """"archform"""" which will augment the shape resistance. In this condition, resistance could not be reduced and could even be increased, if the gas flux continues to be increased. So that there needs setting a baffle called step, which introduces the jetted gas into the turbulence boundary layer. In this case, the shape resistance may be fairly great. Besides, the waterline of model has also some effect on the ratio of reduced resistance, which acts on the size of wave. If waterline is deep, the wave could not affect the deployment of microbubble layer, so there is almost no effect on ratio of reduced resistance. However, the wave would affect distributing of microbubble layer under the model so that the gas could leak out from the two sides of model and directly affect the ratio of reduce resistance if the waterline is very small. Whether installing the dashplate or not has also the great influence on the effectiveness the ratio of reduced resistance. From the results of experiment, conclusion is that adding dashplate will greatly improve the effectiveness of reduced resistance.

当喷气量一定时，水流速度增大，减阻率提高；喷气量与减阻率之间的关系比较复杂，速度一定时，如果喷气量较小，减阻效果就比较差，但当喷气量增大的话，喷射出的气体就会形成一个&拱度&，增加了船模的形状阻力，在这种情况下最好采取断阶喷气，把气体引入到湍流边界层中，在这种情况下，船模的形状阻力比较大；船模的吃水对减阻率也有一定的影响，主要表现在波浪大小上，如果吃水较深，波浪影响不到微气泡层的分布，对减阻率不会造成太大影响，如果吃水较浅，波浪就会影响到微气泡层在船模底部的覆盖情况，可能会有部分微气泡从船模两侧泄漏，这样就直接影响到了减阻效果；是否安装压浪板，对减阻率也有较大的影响，从试验结果可以看出，在船模尾部加设了压浪板时，减阻效果明显得到改善。

Don Quixote is a funny and sorrow story, a work that makes readers taste deeply sorrow when they are laughing at scenario of story. This text divides the meaning of Don Quixote into three layers. The first layer is taste layer, to analyse the comedy of absurdness and the tragedy of sublimity in Don Quixote. The second layer is history layer, to analyse that Don Quixote reflects the

本文把《堂吉诃德》的意蕴分为三个大层次，第一层是审美情韵层，主要分析了《堂吉诃德》荒诞的喜剧美和崇高的悲剧美；第二层是历史内容层，结合塞万提斯本人的经历和西班牙当时的历史，分五个层次进行阐析——塞万提斯本人的真实映射、西班牙社会的真实写照、摩尔人被驱逐的血泪史、西班牙海外殖民历史的曲折反映、反映了西班牙人文主义者与农民的社会关系等；第三层是哲理意味层，剖析了堂吉诃德的疯癫中显示的生命真实，从中看到知识分子"知其而不可为而为之"的人生态度，也映射出的塞万提斯的人文主义思想及其信仰危机和他心中的宗教理想，表现了作为文艺复兴后期代表的塞万提斯的进步的人文主义思想，蕴涵着作者心中无法磨灭的宗教理想，寄托了塞万提斯心中的爱憎和理想。

The results indicated that the ice sample was obviously divided into four layers as micro-pollution layer,cleaned layer,mixed layer and precipitate layer after aqueous bromamine acid solution was completely frozen.

试验表明，溴氨酸水溶液完全冻结后，冰样可分为4层：微污染层、洁净层、混合层和析出层。

The third collector layer has a higher doping concentration than the second collector layer in such a way as to be located between or sandwiched by the first collector layer and the second collector layer.

第三集电极层具有比第二集电极层高的掺杂浓度，被第一集电极层和第二集电极层夹在当中。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。