In this article we are focusing on the non-technical theoretical knowledge needed; the technical aspects of these systems have been covered in previous articles within this series.

这篇文章主要集中在需要的非技术理论知识上，这些系统的技术方面已经在这一系列文章的前几篇中有所介绍。

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The integration between technical theoretical knowledge and technical practical knowledge is the keystone and difficulty in the theory and practice of curriculum of vocational education.

整合技术理论知识与技术实践知识是职业教育课程理论与实践的重点和难点。

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If your capacities are theoretical or technical, you will contribute to knowledge or technique, and, as a rule, your activity will be useful.

如果你的能力是理论方面或者是技术方面的，你将会在知识或技术方面做出贡献。通常，你的行为有益于社会。

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