美国合作学习的研究与实施由来已久。
The research and implementation of cooperative learning in America has a long history.
根据孝感学院校园网的建设过程，着重论述了校园网设计方案的研究与实施过程。
In this paper, taking the construction of CN (Campus Network) in Xiaogan Institute as an example, the author lays special emphasis on the study and implementation of the design plan for CN.
本系统的研究与实施是根据单位的实际生产情况，进行了详尽的需求分析之后提出来的。
According to the conditions of our fact production and full requirement analyzing, the research of this system was brought forward.
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