同心层

并且，我们提出了一种简单模型用来描述对称双嵌段共聚物形成的同心层结构的厚度随孔径的变化。

A simple model is proposed for the concentric-cylindrical lamellae , which gives a reasonable description of the layer thickness .

人们从尿结石的剖面图上发现其具有环状同心层结构，但其形成原因尚不清楚。

Researchers have found the ringed homocentric structures in the section of urinary stone , but the formation mechanism remains unclear .

我们采用由两个均匀同心层组成的月球模型，分别对均布表面载荷和均布径向体力求出了弹性力学解。

In this paper we adopted the model composed of two different uniform compositions for the Moon and worked out the elastic solution with uniform surface load and uniform body forces , respectively .

就像地球的核部一样。地幔也可分为两个同心圆圈层，下地幔和上地幔。

Like the core of earth , the mantle can also be divided into two concentric layers , the lower mantle and the upper mantle .

讨论了保证毛细管内电流导通并稳定四种方法：同心包层液导电、不锈钢组件导电、银箔导电及铂丝导电等；

Methods for achieving stable electrical current within the capillary were discussed , including the employment of concentric sheath flow , stainless steel components , platinum wire and silver paint .

粗面内质网先裂解为大小不同的小泡，尔后小泡上的核糖体开始脱落，直至变成同心圆状板层结构；

At first , the RER became the different sized vesicles , then , the ribosomes on the little vesicles began to fall , and finally , the RER turned to the concentric round lamellar structures .

同心圆绘图的第一层。与同心圆第2层的外圆相吻合。

The first layer in a concentric circle drawing . Fits outside of Concentric Layer 2 .

画正方形的外接圆.同心圆绘图的第二层。与同心圆第1层的内圆和同心圆第3层的外圆相吻合。

The second layer in a concentric circle drawing . Fits between Concentric Layer 1 and Concentric Layer 3 .

同心圆绘图的中心（或第四）层。与同心圆第3层的内圆吻合。

The center ( or fourth ) layer of a concentric circle drawing . Fits inside of Concentric Layer 3 .