By introducing the lattice theory and considering a cubic unit cell, the water permeability of concrete is obtained for several lattice arrangements of aggregates, which indicates that the arrangement of aggregates is an important factor that affects the water permeability of concrete.

By assumption of periodical distribution of uniformed particles in size and shape, both hexagonal and cubic cell models were constructed to study mechanical properties of particle-reinforced composites by using three-dimensional finite element method.

利用三维有限元方法，通过建立立方体、六棱柱单位胞体数值分析模型，对颗粒增强复合材料做模拟计算。

Computer Simulation for the Precipitation Mechanism of the Cubic Alloy Including Coherent Strain Energy

包含共格畸变的立方合金沉淀机制的计算机模拟

They also contain about six grams of sugar per cube, and come in three different flavors-pure drip, latte, and mocha.

每块咖啡中也含有大约6克的砂糖。咖啡块有三种口味：滴滤、拿铁和抹茶。

" You can harvest enough electricity to power a cell phone battery for about four days from a sugar cube," researcher Derek lovley says.

“从一块糖中你就可以获得足以使手机电池待机4天的电量，”研究人员德里克，洛弗利说。

With this density, all the information of the US Congress Library can be stored in a disc with the size of a sugar cube.

按照这一密度，可将美国国会图书馆的所有信息存放在一块方糖大的盘上。

He is stupid enough to hide a sugar cube in a bucket of water.

他蠢得把一块方糖藏在一桶水里。

He felt it for some time, and then said, "Indeed, I am not sure whether it is a wolf's cub or a fox's: but this I know--it would never do to trust it in a sheepfold."

他用手摸了一会儿，然后说：“我不太确定，这到底是一只小狼崽，还是一只狐狸的幼崽，但是有一点我十分确定，千万别让它进羊圈。”

After saving the life of a wolf cub and raising it in secret, Chen becomes captivated by the ferocious, agile and intelligent creature.

一次，陈阵救了一只小狼崽，并悄悄将它收养，从此变得对狼非常着迷，深深地爱上了这种凶猛、敏捷而又充满智慧的动物……

That day, I was spearing fish with my grandfather when I heard the faint crying and found the shivering wolf cub.

那天，我和爷爷正在叉鱼，突然听到微弱的叫声，并发现了这只颤抖的小狼崽儿。

Maheegun was the most mischievous wolf cub ever.

美尔根是最调皮的小狼崽儿。

Unlike dogs, the wolf cub did not respond appointing.

不同于狗狼崽几乎不回应任何指令

Shaun Ellis looks at a wolf cub.

图中，埃利斯注视著一只狼崽。

The leafminers have the characters of small size, very similar morphology in closely related species, high degree of genetic differentiation even containing cryptic species, and it can also outbreak to be disaster in short time.

斑潜蝇具有个体小，近缘种形态极其相似，种内存在高度遗传分化，甚至存在隐种，短期内可以迅速爆发成灾等特点。

Some hypotheses have been suggested, e.g. the conflict between morphological and molecular evidence might result from parallel evolution and/ or convergence and occurrence of cryptic species.

关于分子与形态数据之间的矛盾，系统和分类学家也提出了诸多的假设，例如形态性状的平行进化或者趋同进化和隐种的存在。

Early genetic structure based on short fragment Cyt b of spinosa quite different, suggesting that there may be hidden to cryptic species.

前期基于cyt b较端片段序列研究表明，棘胸蛙遗传结构差异较大，暗示可能存在隐存物种。

Besides, our results also support that comprehensive comparative analysis of mtDNA represents an accessible and powerful tool to identify cryptic species.

此外，研究结果也支持了综合比较分析线粒体基因组是一种识别隐存种有力的工具。

Combined with previous research, there are two cryptic species at least in p. spinosa in widely distributed in southern China.

结合以往的研究，广泛分布在中国南部的棘胸蛙可能至少包含2个隐种。

Study on new cryptic species of Anopheles minimus complex based on molecular markers with different evolution velocity

进化速率不同的分子标记对微小按蚊新亲缘种的研究

Preliminary molecular data indicate that the species may exist cryptic species, but further research is needed.

前期的分子数据表明，该物种可能存在隐种，但需要进一步研究。

The ascertained effects correlate weakly with the size of the introgressed Dv chromatin and are not confounded by the cryptic variation of the genetic background.

这种确定效应与渗入的簇毛麦染色质大小间呈弱相关，并且不会被遗传背景的隐藏变异所掩盖。