在传播中

The axiomatic method really was useful to the development of modern science and technology, but then Chinese did not attach the importance on it.

这种方法中国古代没有，且和近代科学的关系密切，本应受到国人的欢迎，并能尽快在科学研究中应用和传播。

Plane waves are absolutely stable against small modulations in self-defocusing media, the dark spatial solitons exist only in the form localized dark hole on the plane wave background.

在自散焦介质中，平面波的传播对小的调制扰动是绝对稳定的，暗空间孤子正是作为平面波背景上的一种局域暗迹而存在的。

The finite-difference time-domain method is adopted to simulate the propagation of the optical wave in the beam splitter.

采用时域有限差分法模拟了光波在分束器中的传播行为，并计算了分束器的传输效率。

A mathematic model was established and applied to prediction of drillability in parallel direction to the bedding plane of formation by using drillability in perpendicular direction to the bedding plane of formation.

根据声波在横观各向同性介质中的传播规律，建立了利用测井资料反演岩石的各向异性参数进而求取垂直于层面声波波速的方法。

For example, in the design of antenna, it is always involve the imaginaries Bessel function, so these work are belonged to the base research work, but it is important.

本文对各向异性介质偶极天线辐射场的数值计算的研究以及各向异性介质波参数的数值计算的研究目前还没有文献系统介绍，但这些内容对进一步研究探地雷达辐射场的规律是必不可少的，尤其是传播常数，它在探地雷达的研究中仍然是一个非常重要的公式，对其的深入研究有利于对探地雷达资料的正确解释。

FISH technique could be performed for the detection of HBV in human blastomere cells,and it has great significance to reduce vertical transmission of HBV in IVF-ET.

荧光原位杂交技术可用于卵裂球细胞HBV感染的检测，在体外受精-胚胎移植实践中对降低HBV垂直传播有重要意义。

Big bluestem persists from year to year, spreading by seed and rhizome, creating an underground web of coarse roots near the surface as well as fine root fibers that may reach eight feet deep where the soil allows.

大草原牧场坚持每年都传播种子和植物根茎，在地表周围建立了一个根部网络，就像根部的纤维一样，能将养分传送到8英尺深的土壤中。

With the invention and widespread of the art of printing,the document quantity began to increase,cost reduced and forms unified in bookmaking.

在中国印刷术发明后以及广泛的流传中，文献数量开始增多、生产成本下降、载体形式统一，这些对文献传播的思想与结构、社会科技与文化的发展、人们接受信息的方式等也都产生了很大的作用，影响了社会的变革，推动了世界文明的进步。

SIR model can be studied using the theory of branching process.

概述了用复杂网络的理论来研究两个传染病模型，即SIR模型和SIS模型，以及在这两个模型中如何计算疾病的传播阈值。

In network dissemination, the Internet has the audiences the information age bri...

与传统受众相比，在网络传播活动中，网络受众具有信息时代鲜明的印记，体现出一些鲜明的特点。

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。