在传播中

This paper studies the influence on the flame transmission law in gas explosion of tube furcation.

在实验的基础上，研究了管道分叉对瓦斯爆炸过程中火焰传播规律的重要影响。

Under drive of market economy, news amusement becomes current mass media general phenomenon of activity. Strike etc.

在市场Economic经济的驱动下，新闻的娱乐化成为当今大众传播活动中的普遍现象。

In the light of the near axis theory in geometrical optics,this paper discusses the imagery experiment and theory calculation when light goes through an optical system.

一个实际的光学系统的成像质量将受到衍射的限制，在几何光学中研究光线的传播是具有近似性的。

In the 14th century, another important Italian glassmaking industry developed at Altare, near Genoa and during the 16th century, craftsmen from Altare helped extend the new styles and techniques of Italian glass to other parts of Europe, particularly France.

14世纪，另一个重要的意大利玻璃生产工业在Genoa附近的Altare得到发展，16世纪时，Altare的工匠们将新的款式和技艺传播到欧洲其他部分，特别是法国。15世纪下半叶，Murano的工匠开始使用石英砂和由海洋植物得到的碳酸钾生产特别纯净的水晶。16世纪尾，这个岛上7000居民中的3000人均参与这种玻璃生产工业。

The results show that the density of gritstone is decreased gradually as the temperature increasing; so that it can be ignored; the longitudinal wave velocity is linearly decreased when the temperature increasing, and decrease rate of it follows the law of conic; R is one temperature point, which makes the law of tensile strength of gritstone after high temperature follows the law of parabola; and the maximal tensile strength appears when the operative temperature is R. After the temperature is higher than 700 ℃, tensile strength is small and change range is small when the temperature is increased.

结果表明，高温后粗砂岩的密度随试验温度的升高减小幅度很小，几乎可忽略不记；高温后试件中纵波波速的传播随温度升高基本呈线性降低，而减小率呈二次曲线规律变化；存在一个温度点R，使高温后试件的抗拉强度呈开口向下抛物线关系变化，且在R温度作用后试件抗拉强度达到最大；当试验温度大于700 ℃后，试件的抗拉强度变得很小，且当温度升高时变化幅度也很小。

Transmission and energy distribution characteristics of Rayleigh waves in layered ground were important for Rayleigh wave test.

掌握瑞利波在分层地基中的传播和能量分布特征是进行瑞利波勘测的关键。

Basing on the propagation characteristics of electromagnetic wave in the ground, Ground Penetrating Radar is one of high r...

探地雷达是一种利用高频电磁波在地下介质中的传播特性来探测地下目标的高分辨探测技术，目前最高分辨率可达到厘米级。

It is fou nd that in two dimensional case the wave-packet propagates downstream in the we dge-shape,the angle of the half wedge is 10° which is in good consistence with the experiment data.

发现点源波包在二维边界层中呈楔形向下游传播，其横向偏角为10°，与相关的试验图片相吻合。

Secondly, this thesis simulates CDMA Soft Handoff by using Hata transmition model and the threshold parameters on Visual C++ platform. Then through relevant experiments, it validate the impact of CDMA system threshold parameters in switching.

通过对软切换的分析，利用Hata传播模型和切换规则设置相关门限参数并在Visual C++平台上实现软切换的仿真设计，并通过相关实验，验证了CDMA系统中软切换各项参数取值对CDMA切换产生的影响，能够仿真CDMA切换功能。

The explosion cause a pressure wave which flows with high velocity through the relief pipe system.

爆炸引起压力波，压力波在压力放散系统中快速传播。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。