First, why do we get light propagating at all?

Layer is a method for propagating crops.

压条是粮食增产的一种方式.

This study presents an analytic solution for an asymmetrical fast propagating semiinfinite crack in a strip.

用复变函数方法得到了弹性狭长体中含有一非对称半无限裂纹的动力学问题的分析解.

Amazingly, something woke up and began propagating in the petri dish.

令人惊讶的事情发生了, 某种生命苏醒过来,并开始在培养皿上繁殖.

Stoneley wave is a kind of guide waves propagating along the liquid solid interface in well.

斯通利波是一种沿井壁传播的声波,当声波脉冲与井壁和井内流体的界面相遇时就会产生斯通利波.

The results showed that the-propagating technology was feasible in preparing ceramics dies and in-solid metal forming.

实验结果表明:应用自蔓延技术制备陶瓷模具的方法是可行的,而且适合金属半固态加工的应用.

Who is propagating that nonsense?

谁在传播那种荒谬的想法?

Wuchang District is propagating and promoting three major industries at the meeting.

武昌区在中博会上宣传推介三大产业.

What are the pigeons doing outside? Eating, sleeping, propagating!

门外的那些鸽子在干什么? 吃, 睡, 繁衍!

The propagating characters of strain wave and displacement wave in different piles are studied.

将基桩简化为一维弹性杆,研究了位移波和应力波在不同类型的基桩中的传播特性.

The model shows a wave propagating from left to right through air.

该模型表明,波从左至右通过空气.

We first take up the subject of optic ray propagation through a variety of optical media.

首先研究光束通过各种光学介质的传播问题.

Propagation of virus in embryonating eggs was first used by Goodpasture and Woodruff in 1931.

1931年Goodpasture和Woodruff首次应用鸡胚培养病毒.

Also, the idea of progress and its enthusiastic propagation may have some effect.

还有, 进步观念及其热烈宣传也会产生某种效果.

The simplest explanation of aberration is the analogy of light propagation to the fall of raindrops.

对光行差的最简单的解释,是把光的传播同雨点的下落作类比.

Diseases spread by insects are encouraged when climatic conditions propagation of the vector.

当气候条件适于媒介昆虫繁殖时,由昆虫传播的疾病即行蔓延.

It is the reverse of the propagation step in addition polymerization.

这一过程是加聚反应历程中链增长步序的逆过程.

A complete study of the propagation of shock waves in elastic solids is presently lacking.

关于弹性固体中冲击波的传播,目前还缺少全面的研究.

Crack propagation usually begins slowly.

裂纹的增长常常是开始缓慢.

Efficient methods of vegetative propagation and improved screening techniques are also required.

高效率的无性繁殖法和改良的鉴定技术也属必需.

The method is a direct simulation of the actual process of radiation propagation.

这种方法是辐射传输实际过程的直接模拟.