在传播中

In the process of communication redundancy is essential to combat noise .

在传播的过程中冗余对于排除噪音是必要的。

In acoustics he studied the propagation of sound and musical consonance and dissonance .

在声学中，他研究了声的传播和音乐的和谐与不和谐。

In national communication, mass medias contribute much to national image by continuous reporting .

在国家传播中，传媒通过对他国源源不断的报道，构建他国的国家形象。

It is suggested that the change of cooling curve is due to the facs that:(1) the ...

所有这些是由于超声波在金属中传播时，声能变热能和使欲凝固分子做平行于結晶面振动的結果。

World economic and cultural integration in the background, the analysis of cross-cultural study in disseminating the culture of advertising security issue is particularly important.

在世界经济文化一体化的背景下，分析研究跨文化广告传播中的文化安全问题就显得尤为重要。

In this paper, the propagation of electron cyclotron waves in plasmas is studied by numerically resolving the ray equations.

通过数值求解波迹方程研究了电子回旋波在等离子体中的传播。

By the nonlinearity of the propagation medium-air, the audible sound with high directivity can be produced.

利用超声波在空气中传播的非线性交互作用，可以产生高指向性的可听声音。

How does the role of the teacher as mediator differ from the traditional role of the teacher as disseminator of information?

在信息传播中教师作为介入者与传统的教师角色有什么不同？

A general formula of Dopper shift is obtained from 4-dimensional wavevector transformation, and the transversal and longitudinal Dopper effect is also discussed.

利用四维波矢量变换导出了波在介质中传播的多普勒频移普遍公式，并讨论了纵向多普勒效应与横向多普勒效应。

So this article mainly focuses on the study of the spreading of vibration wave in the earth under the condition of viscous boundary condition.

采用粘性边界条件对振动波在土体中传播问题进行了研究。

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。