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小学作文“模式化”问题产生原因及其对策研究
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作者 赖霞 《才智》 2017年第6期163-163,共1页
为探索小学作文"模式化"问题的产生原因及其对策,本文采用文献研究法从"模式化"问题中的学生、教师两方面寻找原因并进行分析,从而提出学生写作需贴近实际生活,教师需转变教学观念的对策。
关键词 小学作文 “模式化”问题
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Product Family Hierarchical Associated Design and Its Hierarchical Optimization
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作者 Gang Du Jianzhong Wang 《Journal of Systems Science and Information》 2009年第3期245-252,共8页
After reviewing the literature and methodology-related issues within the field of product family design, a deficiency in the current design and development of product family is pointed out. The concept of hierarchical... After reviewing the literature and methodology-related issues within the field of product family design, a deficiency in the current design and development of product family is pointed out. The concept of hierarchical associated design is proposed in this article, according to the deficiency~ and the methods and models for realizing the notion above are described. A two-dimensional analytical model is constructed based on the composing levels and developing processes of product family. The optimization models to hierarchical associated design problems are grouped into two categories: overall-local and key-subordinate. The algorithms of the models are discussed in this paper 展开更多
关键词 product family design hierarchical optimization the two-dimensional framework
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