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- multi- layer sample rotation 多层次样本轮换
- four - layer sample rotation 四层次样本轮换
- two- layer sample rotation 两层次样本轮换
- 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。
- 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。
- 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。
- 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 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。
- The AdventureWorks Cycles CLR Layer sample for SQL Server 2005 provides some useful utilities that form an extra layer of functionality on top of the base AdventureWorks sample database. SQL Server 2005的AdventureWorksSQLCLRLayer示例提供了一些有用的实用工具,这些实用工具在基本的AdventureWorks示例数据库之上形成额外的功能层。
- 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。
- By layered sample, take out researchers in twenty institutes, and obtain 571 valid stylebook by printing questionnaire and network questionnaire. 通过分层抽样和多阶层抽样的方法，从北京地区32个研究所中抽取20个研究所的科研人员，并以印刷型问卷和网络问卷两种方式，获得有效样本571份；
