We still do not know how the large scale structures and galaxies were formed . but we believe during the first million years , the universe was full of photons , much more than the matter . after a million years or so , matter dominates and the large scale structures and galaxies began to form 我们仍未弄清宇宙的大尺度结构和星系是怎样形成的,但我们相信在最初的数百万年,宇宙中充满著光子,数量可比其他物质多,再经过约数百万年,物质才成为宇宙的主要成分,并开始形成了大尺度结构和星系。
Experimental modal analysis based on ambient vibration is mainly to deal with the engineering problems from with we can hardly achieve the input signals , such as the operational modes of a flight vehicle during the flight or the dynamic behavior of a large - scale structure like an offshore platform , a bridge as well as a skyscraper on which we can ’ t exert a heavy kick 基于环境振动的实验模态分析主要针对一些激励不可测的工程问题,如研究飞行器在飞行中的运行模态,或诸如海洋平台、桥梁、摩天大楼之类难以施加激励的大型结构的动态特性。本文重点研究了随机子空间方法在环境振动模态分析领域的应用。
As result of above , soil character ' s variation can be measured by structure , especially by mini - scale structure , under circumstance of normal temperature , normal pressure and slowly groundwater variation , and so mini - scale structure is platform and main location for water - soil interaction taking place and developing , also the carrier of their effect . the water - soil interaction can be analyzed by the soil mini - scale structure , from this the mathematical model on the variation of mini - scale structure and the deformation forecast model can be established . it is manifested by tests and researches that there is the variation of soil structure caused by water - soil interaction , moreover , which can be recognized and showed by some tests . it can conform the existence of the structure variation by water - soil interactio 由理论分析提出,域市常温、常压、缓慢的地下水变异环境下的土体性质的可变性将由结构一尤其是细观结构来度量,进而提出细观结构是水土作用发生与发展的“平台”和主要场所、是水土作用效果表现的载体,水土相互作用分析可通过土细观结构这个桥梁来进行,由此建立了细观结构变异数学模型以及变形的预测模型;试验研究表明水土作用引起土的结构变异是存在的,而且结构变异可以被认识,并可以通过一定的测试手段来显现。
This work aims at studying multi - scale structures of large - scale stratiform precipitating clouds typical of henan province of central - eastern china in spring and autumn drought periods of china , the potentials and techniques of artificial rain increase . through analysis of historical weather / climate and cloud physical data , developed are a number of multi - scale observational schemes including intensive observational items , and space / time resolutions of data for integrative field observations to obtain real - time measurements of the structures at large - , medium - , small - and micro - scale . from analysis of observed separate items , their integrative treatment and numerical simulation we place focus on case studies and their integration in investigating such structures of stratiform precipitating clouds over the target region , rainfall physical mechanisms and exploitation of artificial rainfall increase potentials , whereupon a conceptual model is constructed and a range of catalysis schemes are proposed to improve smaller - scale forecasting accracy and techniques for the rainfall increase , with the dominant results given below 以地处中原、具有典型代表意义的河南层状降水云系为主要研究对象,在对该地历史天气气候和云物理等资料分析的基础上,研究设计云系多尺度观测方案(包括加密观测项目、观测时空分辨率) ,实施有设计的外场综合观测,获取云系结构多尺度(大、中、小、微)配套的实时观测资料;通过对各种观测资料的分项和综合处理分析,以典型个例观测和数值模拟分析研究为重点,综合多个例分析,研究河南层状降水云系多尺度宏微观结构特征、降水物理机制和人工增雨潜力条件,建立典型层状云系人工增雨概念模型,研究科学的人工增雨作业技术系统。
The result shows that the dynamic field and thermodynamic field in the zone of the meiyu front have obvious meso - scale structure characters , the meiyu frontal rainfall is caused by a series of meso - scale convective systems in the zone of meiyu fron t , the dynamic field and thermodynamic field corresponding to the meso - scale convective systems take on evident meso - scale structure , the structure of the dynamic field and thermodynamic field will adjust correspondingly in the course of the development of the meso - scale convective systems , what ' s more , the adjustments and the changes of the physical parameters will restricted the development and transformation of the meso - scale convective systems in reverse 试验结果表明,梅雨锋带内的动力、热力场具有明显的中尺度结构特征,梅雨降水是由梅雨锋带内的一连串中尺度对流系统造成的,中尺度对流系统对应的动力场、热力场均呈明显的中尺度结构,中尺度对流系统发生发展过程中,其伴随的动力、热力场结构均会作相应的调整,这些物理量场的调整和变化又制约了中尺度对流系统的发展变化。
scale: scale3 n. 1.鳞〔有时也用作集合词 ...structure: n. 1.构造,结构;组织;石理,石纹。 2.建造物。 ...full scale structure test: 足尺结构试验full-scale structure: 全尺寸结构large scale fractal structure: 大尺度分形结构large scale structure: 大结构large scale structure of the universe: 宇宙大尺度结构large-scale structure: 大结构large-scale structure of the cosmos: 大尺度结构small-scale structure: 小型构造super large scale structure: 超大尺度结构large scale structure testing machine: 大型结构试验机be in the scale: 悬而未决, 面临紧急关头in scale: 对称形状,重量相等; 重量相等in scale with: 相适no to scale: 超出量程not in scale: 未按比例not to scale: 不按比例尺; 未按比例on a scale: 在某个规模on a…scale: 以……规模地on such a scale: 如此规模的scale: n. 1.(尺、秤等上刻划的)分度,度数,标,标度,刻度;尺寸;尺,尺度。 2.【音乐】(标度)音阶;音列。 3.等级(表),级别(表),品级。 4.【数学】计数法,进位法,换算法。 5.比例;比例尺;缩尺程度。 6.率,税率。 7.规模;大小。 8.阶梯,梯子。 a proportional [proportionate] scale 比例尺。 a reduced scale 缩尺。 an enlarged scale 放大尺。 a folding scale 折尺。 a calculating [sliding] scale 计算尺。 the binary [ternary, decimal] scale 【数学】二[三,十]进法。 a chromatic [diatonic] scale 半[全]音阶。 the social scale 社会地位(等级)。 rate scale 定价,价目表。 visibility scale 能见度。 the scale of hardness 【物理学】硬度(表)。 a rate scale 价目表。 Kelvin temperature scale 开氏[绝对]温标。 lower scale 低读数;刻度下段。 natural scale 实物大小;自然数;自然量;固有量。 oil scale 油表。 circular scale 刻度盘,图标度。 colour scale 彩色温标。 be high [low] in the scale of civilization 文化程度高[低]。 full scale test 【火箭】实物试验。 in scale 按照一定尺度,在一定限度[范围]内。 on a large [small] scale 大[小]规模地。 on an extensive scale 广泛地[的]。 play [sing, run over] one's scales 奏[唱、练习]音阶。 sink in the scale 降级。 to a scale 按一定比例。 vt. 1.用梯子爬上;爬越,攀登(山等)。 2.用缩尺制图;(用比例尺)设计[测量],按比例排列[绘制,制造]。 3.相机决定[判断];〔美国〕大略估计,约略计算(林木的可用材等);(按比例)增减。 vi. 变成梯子,成梯形;逐步攀登;逐渐增高。 scale the height of scientific knowledge 攀登科学知识的高峰。 scale down 按比例缩小[减少,减低]。 scale up (按比例)增加,扩大,升高。 n. 1.称盘,天平盘。 2.〔pl.〕 秤,磅秤,天平〔常说 a pair of scales 〕。 3.(骑师、拳师等的)体重检查(器)。 4.〔the Scales〕 【天文学】天平座;天平宫 (=Libra)。 5.正义,裁判。 a beam and scales 天平。 a beam scale (杆)秤。 a platform scale 台秤。 a clerk of the scales 体重检查员。 go to scale 量体重。 go to scale at 体重(多少)。 hang in the scale 未作决定。 hold the scales even 公平裁判。 throw one's sword into the scale 用武力解决。 turn [tip] the scales 1. 使平衡(局势)发生变化。 2. 起决定作用。 3. 扭转局面;转变为有利的情势。 turn the scale at ... pounds 重(若干)磅,有(若干)磅重。 vt. 用秤称;把…过秤。 vi. 重(若干),有(若干)重。 scale3 n. 1.鳞〔有时也用作集合词〕。 2.鳞状物。 3.【植物;植物学】鳞苞,鳞片;甲鳞;翅瓣。 4.齿垢。 5.水锈,锅垢。 6.氧化铁皮,铁鳞;锈皮。 7.【医学】鳞癣。 8.(眼睛的)翳,阴翳。 9.皮,梁;薄皮;刀鞘。 10.=scale insect. boiler scale 锅炉水垢。 Scales fall from one's eyes. 眼睛的阴翳消掉,发觉错误,觉醒。 anvil scale 锻渣。 forge scale 锻铁鳞,氧化皮。 mill scale 轧屑;轧钢鳞皮。 vt. 1.剥…鳞。 2.刮掉…的锅垢;给…去锈。 3.【炮】清扫(炮筒)。 vi. 1.(鳞一般)剥落 (off away)。 2.生锅垢。 t scale: t量表to scale: 按比例缩小structure: n. 1.构造,结构;组织;石理,石纹。 2.建造物。 3.【化学】化学结构。 4.【心理学】(直接经验中显现的)结构性,整体性;整体结构。 military structures 工事。 adj. -d ,-less adj.