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- two layer paper 双层叠合纸
- The shagreen cell is two layer with chlorophyll. 绿皮细胞2层，有叶绿体；
- The research, however, connects two layer strips together. 这项研究，不过，连接两个层带在一起。
- 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。
- A simile has at least two layers of meaning. 明喻修辞至少有两层含义。
- The bottom layer was paper and the top layer was the emulsion or binder and on the paper with two layers it might be collodion, egg-albumen or gelatine. 最底层是纸，而最顶层是乳胶或黏结剂；在两夹层之间的纸必须为胶棉、蛋白或是凝胶。
- The three layer paper consisted of gelatine-paper where a layer of baryta had been deposited between paper and gelatine in order to reflect light and to isolate the paper from the emulsion. 此三层纸包含凝胶纸，其中氢氧化钡层已在纸和凝胶中间沉淀，如此可反射光以及将纸从乳胶中隔离出来。
- The head distribution is different in the two layers. 两层中的水头分布不同。
- The mesophyll consists of two layers of palisade parenchyma. 叶肉是由两层栅栏薄壁组织组成。
- This paper's main aim is to narrate the technology and the principle of agent planation in two layers of metal process. 摘要本文主要叙述了双层金属布线中介质平坦化的工艺及原理。
- The product is two layers of limpness composite material of polyester thin film coated with bonding agent and single surface bonding of calendaring aromatic polyamide fiber paper. 该产品是由聚酯薄膜涂以胶粘剂，单面粘合轧光聚芳酰胺纤维纸而成的二层柔软复合材料。
- 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。
- Present the two layer model of thin shock layer for approximate calculation of the inviscid flow over 3d sharp bodies. 介绍用于近似计算绕三维尖体无粘流激波薄层的二层模型。
