系统的核心设计是预先完成的，但是具体实现还是在开发过程中慢慢成型。
The major design of the system was known up front, but the implementation was still a work-in-progress during the construction of the software.
第四部分阐述了电子学档评价项目的设计以及在实施过程中的具体操作。
In the fourth chapter, it states the design of electronic learning portfolio assessment items and its concrete operation during the implementation.
文章介绍了逻辑加密卡sle4442工作原理及其在肺活量计上的具体应用过程，并设计了一种通用的IC卡接口电路。
This paper introduces the working principle of logic encryption card SLE4442 and its concrete application at spirometer, and also the design of a general IC card interface circuit.
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