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The changes of pH, glucose consumption, nitrogen assimilation, aureomycin production, formation of organic acids and ammonia as well as mycelial respiration during aureomycin fermentation by Streptomyces aureofaciens were studied with two media.
在两种培养基中观察了金霉菌培养过程中pH的变化、葡萄糖的消耗,氮的同化、金霉素的产生、氨和有机酸浓度的变化、菌丝的呼吸等代谢变化,这两种培养基的区别,即在一种培养基中另加入肉汤粉和玉蜀黍浆。
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The origin of mankind, there are two theories, a view that human beings are created by God, and the other is the theory of evolution elaborated in Australopithecus evolved.
人类的起源有两种理论,一种认为人类是由上帝创造的,另一种则是进化论阐述的古猿进化而来。
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There are two forms of organization of power, a democracy is authoritarian.
权力组织形式有两种,一种是民主,一种是专制。
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In this paper, three types of image data base is proposed, that is, attribute-oriented, feature-oriented and knowledge-oriented; the public fundamental structure of image data base system in each field is implemented, the improved expression of image geometrical feature is given, the strong command language and necessary auxiliary means to manage image data base are designed.
文中提出了图象数据库的3种类型,即面向属性型、面向特征型和面向知识型;实现了各领域上的图象数据库系统共有的基本结构;给出了一种改进的用于表示图象几何特征的方法;设计了一种具有较强功能的命令语言和管理图象数据库所必要的辅助手段。
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One is the method based on orientation and gradient and the other is the skeleton-distance averaging method.
2提出了两种确定等值线窗口的新方法:一种是方向与梯度结合的确定法,一种是中心线等分法。
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Passing to diagnosis adopt coal machine framework oil seal leak oil,and the framework oil seal leak to oil contain two kinds of forms,a kind is in the bore and coalescence to leak the oil;a kind is an oil seal lips the and axis of revolution sport leak the oil.
通过对采煤机骨架油封处漏油的诊断,骨架油封处漏油有 2种形式,一种是在孔座与接合面处漏油;一种是油封唇口与旋转轴运动漏油。
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In this paper, an extended divide and conquer algorithm is intended proposed, which is for solving the real symmetric band generalized eigenvalue problem under distributing environment Eigenvalue partition theorem is presented and proved Based on divide and conquer by extension, this algorithm computes generalized eigenpaires of symmetric band matrix pencil by bisection and generalized Rayleigh quotient iteration Theoretic analysis and numerical results show that this algorithm is better than the classic software package LAPACK when bandwidth is small and the scale is large Combined with multisection, which has good parallelism, it got good effects under distributed environments
提出了分布式环境下计算对称带状广义特征值问题的一种扩展分治算法,给出了特征值分割定理及其证明算法在扩展分治的基础上,利用二分压缩结合广义Rayleigh商迭代计算广义特征对理论分析和数值实验表明,对于窄带宽大规模的广义特征值问题,该分治算法明显优于LAPACK软件包结合并行性好的多分法,在分布式环境下获得了很好的并行效果1 引言本文研究了对称带状广义特征值问题Ax =λBx ( 1)的并行计算,其中,A ,B均为半带宽为r的n阶实对称带状矩阵且其中之一是正定的本文总假设B是正定的求解此问题有两种传统方法,第1种方法是通过计算矩阵B的Cholesky分解,将问题( 1)转化为标准特征值问题[1~3] ,进一步
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To give the definition of the mass concrete and to concrete\'s cracks together with practical meanings of control ,and give a brief review on the research in the field at home and abroad, at last, methods to control temperature crack of the mass concrete from several aspects such as design measures,concrets material, construction schedules.etc are summed up; To explain the physical mechanics of the concrete and computing methods-Difference Method and Finite Element Method, and illustrate the application of their specific methods repectively;Several temperature factors that can influence the temperature stress of mass concrete baseplate are analyzed. The influence degree of temperature factor can be got through the ANSYS simulation computation the control of temperature can control the temperature stress, consequently control the temperature crack of mass concert baseplate; through the influence of the crack resistance ability of mass concrete baseplate which takes the reinforcement as a part is analyzed. By ANSYS simulation, the best suited volume ratio of reinforcement is found out, at same time the layout of reinforcement with the same volume ratio can also affect the resistance ability of mass concrete baseplate. Sum up of above analysis, anti-crack function of steel bar in early mass concrete baseplate is obvious, so it\'s necessary to consider beneficial effect of construction steel bar in research of temperature control on mass concrete baseplate.
本文先容了大体积混凝土及混凝土裂缝的基本概念,对国内外在这个领域里的研究现状作了扼要叙述,并从结构设计、混凝土材质、施工措施等方面总结了大体积混凝土温度裂缝控制的方法及防止措施;阐述了混凝土的基本物理力学性能,总结了大体积混凝土温度计算的方法——差分法和有限元法,并分别举例说明其具体应用的方法;分析了影响大体积混凝土底板温度应力的几种温度因素,利用ANSYS模拟计算,得出了每种因素的影响程度,通过分析提出了在这几种温度影响因素下如何通过控制温度以达到控制温度应力从而来控制裂缝的具体建议;针对大体积混凝土基础底板中配筋的不同对混凝土底板抗裂能力的影响不同,利用ANSYS进行模拟分析,得出底板中最合适的体积配筋率,同时分析了在相同体积配筋率下钢筋的具体布置对大体积混凝土基础底板抗裂能力的影响,分析表明,配置钢筋对混凝土结构的开裂阻止作用明显,在研究大体积混凝土温度裂缝题目时,要考虑钢筋在其中的有利作用。
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To give the barest of definition, language is a system of arbitrary vocal symbols used for human communication.
礼貌是人们在交际中的一种现实目的,也就是说礼貌被视为一种取悦他人的真实目的,或是人们言语行为的一种内在动因。
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After the beauteous Fetnab (who "knew the ninety-seven waysof love...though...the seventy-fourth position turns out to be the same as theseventy-third, but with your fingers crossed"), came Lola Montez and Cassie andSusie the Bawd; and, finest of all, the Indian princess Lakshmibai, her"splendid golden nakedness" dressed in no more than bangles and a tiny veil.
先是美艳的菲娜波(她知道97种爱的姿势…虽然第七十四种姿势不过是第七十三种姿势的翻版,唯一的不同是双手十指交叉),接着是罗拉·莫恩忒兹、卡西和女鸨母苏茜;还有最美丽的印度公主拉克仕密白,她那"绚烂的淡金色裸体"上,除了镯子和小小的面纱之外再无它物。
- 推荐网络例句
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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。
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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。
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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