查询词典 propagation

Element-free Galerkin Method is a effective method for solving partial differential equations with the help of shape functions coming from moving least squares approximation. It is well-suited to problems involving large deformation and crack propagation etc on which Finite Element Method can not be used easily. But EFGM is computationally expensive and it is hard to impose the essential boundary condition. Coupling the EFGM and FEM can fetch up the defect of EFGM and improve the efficiency highly.

无网格伽辽金法是基于移动最小二乘法的一种用来求解偏微分方程非常有效的方法，在处理诸如高度大变形、裂纹动态扩展等有限元法较难解决的问题时有其独特的优势，但是存在处理边界条件复杂，计算量大的不足，将无网格法同有限元耦合可以解决这些缺点，极大的提高计算效率。

It is found that the variation of ocean circulation during an ENSO event is characterized by the mass cycle anomaly in the equatorial Pacific Ocean, with the anomalies of equatorial upwelling firstly appearing on the surface and subsequently spreading to the deep, and an eastward propagation of EUC anomalies.

本文在GFDL模块化海洋模式MOM2基础上搭建了一个水平分辨率为1°×1°（赤道地区经向分辨率1/3°）、垂直方向17层的全球海洋环流模式，首先在COADS气候月平均资料的强迫下进行了360年的spin-up积分，成功对全球海洋大尺度环流的多年平均态和季节变化特征进行了模拟。

In conclusion, the lag phase of Streptococcus thermophilus was shorten in the eutrophy culture medium, and the time achieving the culminated point of logarithmic phase was shorted also, at the same time, the stationary phase lengthened. After secondary culture, Streptococcus thermophilus reached directly the log phase hardly through the lag phase, and then quickly reached the decline phase. There were more relations of the metabolic regalities of the three kinds of nutritive substances with the super-concentrated incubation process of Streptococcus thermophilus: the more the number of the bacteria, the quicker the metaboling, while the fewer, the slower the metabolism. Moreover, there apparently existed morphologic changes in this course, and there maybe existed the apoptosis, which correlated with bacteria propagation and acid producing. With the culture time postponed, the nutritive substances in the culture medium lacked also, and the morphologic change and apoptosis appeared more obviously.

结果表明，嗜热链球菌在营养丰富的培养基中的生长延滞期缩短，到达对数生长顶点的时间变短，稳定期的时间延长，当经过二次培养后，嗜热链球菌几乎不经过延滞期直接到达对数期，平稳期持续的时间较短，很快到达衰亡期；嗜热链球菌在超浓缩培养过程中三大营养物质的代谢规律也同它的培养过程有很大的关系，菌数多，其代谢旺盛，菌数降低其代谢速度减慢；嗜热链球菌在超浓缩培养过程中存在着明显的菌体形态变化，并可能存在着细胞凋亡，与菌体增殖和产酸规律密切相关，随着培养时间延长，培养基中营养物质变得贫乏，菌体形态变化和细胞凋亡的情况愈加明显。

The stable expression of exogenous gene in E.coli chromosome had no effect on the bacterial growth and propagation.

外源基因在大肠杆菌染色体上的稳定表达并不影响细菌的生长繁殖。

In this paper, propagation of quasi-continuous wave in photonic crystal fiber is theoretically and experimentally investigated.

对准连续光在光子晶体光纤中的传输特性进行了理论和实验研究。

The explainable reason includes the shortage of legal propagation, the ignorant of legal of the peasant ,and so on.

产生这种现象，固然有在农村的法制宣传不够、农村中的人员素质不如城市等原因，但最主要的原因应该是社会的变动。

The exponential attenuation curve of the gain along the pulse propagation time is simulated.

分析了分幅相机增益衰减的理论模型，利用Mathematica软件模拟了增益随电脉冲传输时间指数衰减的曲线图。

Applying these results to the topography, we deduce the explicit expression of the error propagation formula with regard to the non-linear function.

将这些结果应用到测绘学，得到非线性函数的误差传播的显式表达式。

Sporadic E occurs at a lower height than the F layer and this tends to limit the distance over which propagation is possible in a single hop.

分散E 比F 层数和这倾向于限制传播是可能的在一棵唯一蛇麻草的距离发生在更低的高度。

Investigation of the ballistic propagation of acoustic wave through two almost same sintered samples with face - centered cubic lattices indicates that there is a band gap range respectively in two order quasi - homogeneous media.

研究超声波经过两个烧结样品的行为。两个烧结样品为有序的面心立方结构，它们的结构几乎相同。研究表明：在两个有序的准均匀的介质中分别有一个禁带区域。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。