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- The shagreen cell is two layer with chlorophyll. 绿皮细胞2层，有叶绿体；
- TWO LAYERS SYSTEM GEOLOGICAL MODEL OF CYCLIC WATER FLOODING FOR WEIGANG OIL FIELD 魏岗油田二层系统周期注水地质模型
- The research, however, connects two layer strips together. 这项研究，不过，连接两个层带在一起。
- Thisessay decide to adopt two layer control structures,which is “setpoint controlcircuit+RBF nerual network system” and connecting to the High Bus of theDCS. 采用“定值控制回路+RBF神经网络”两层控制结构，并通过接口外挂于水泥窑集散控制系统的高速数据通道上，实现窑的综合优化控制。
- When notching two layers of fabric, notch each layer alternately. 两层面料都需打刀眼时,必须一层一层地交替进行。
- By organizing data block partition, two layer nested bintree were built. 在数据分块组织的基础上构建了两层嵌套二叉树。
- Door panel made of two layers aluminum. 双层铝合金门板。
- This is a membrane which is made up of two layers. 这是由脏层和壁层两个层组成的膜。
- Eyes are composed of two layers of hemisphere. 眼睛由两层半球组成。
- The periplasm of eggs included two layers. 甜菜夜蛾卵的周质分两层；
- This makes the sling into a two layered tube. 这样背巾就折成一个双层的环了。
- Most back-calculation theories are based on the linear elastic layer system and quietude analysis method, which neglected the nonlinear peculiarity of the pavement material. 现有的反算理论大多建立在弹性层状体系和拟静力分析方法的基础之上,忽略了路面材料应力应变非线性特性。
- A simile has at least two layers of meaning. 明喻修辞至少有两层含义。
- In the transition region, the structure of DMSO layer transforms from one to two layers, and the total potential of the system shows a sudden jump. 结果表明：随着插层量的升高，体系会经历三个状态，在过渡状态区，DMSO分子从一层转变为二层，体系的位能有一个突然升高的过程。
- The head distribution is different in the two layers. 两层中的水头分布不同。
- The surface layer system of Geography textbooks consists of text system, picture system and practice system. The thesis focuses on the picture system of middle school geography textbooks (PSMSTG). 地理教材的表层系统由课文系统、图像系统和作业系统三部分组成，本文研究中学地理教材的图像系统。
- The mesophyll consists of two layers of palisade parenchyma. 叶肉是由两层栅栏薄壁组织组成。
- Now, there are several common system architecture such as data abstraction and OO organization, layered system. 目前,已有一些公用的体系结构问世,如数据抽象和面向对象组织(data abstraction and OO organization)、层次式系统(layered system)等。
- A preliminar application of the polyimide film to two layer flexible copper clad lamination was studied. 对该聚酰亚胺在二层柔性覆铜板上的应用进行了初步研究。
- The gap of performance between domestic two layer and imported three layer metal morgoil bearing is analyzed. 分析了国产2层油膜轴承与摩根3层金属油膜轴承的性能差距。
