...l-groups design） 第一节 混合设计（mixed design）一、 组内设计（within-group design） 与组间设计（between-group design）二混合设计的类型二、 混合设计的类型三、 选用设计类型的考虑 一、 组内设计与组间设计1、 组内设计与组间设计（1 ） 组内设计：...
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通过对产品间相似性参数的研究可以将阀门产品分为若干产品组，通过对新产品设计任务的参数值与各组产品参数值的对比，就可以迅速得到相似产品的信息。
By using the similarity metric, valves can be classified into groups. Contrasted parameters between products group and new product needs, information of similarity product will be found out.
文中着重论述了光纤与探测器间的光耦合问题，并就一组合透镜耦合方案作了具体设计计算。
In the article, the optical coupling between the optical fibre and detector is stressed and the coupling scheme of a combined lens is designed and calculated concretely.
该文将扩频码设计与联合检测结合起来，提出了一种具有组间零相关窗特性的新型扩频码。
A novel spreading code with group-wise zero correlation window is proposed in this paper by combining the spreading code design and joint detection.
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