Everybody has a language system, an individual "bank of active language knowledge", which contains a variety of types of writing.

每个人都掌握了一套包含不同语体的语言体系，既个人的“活用语言知识库”。

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Philosophy is no longer knowledge system which produces propositions, but thinking activities to interpret propositions and clarify the logic of language.

哲学将不再是生产命题的知识体系，而是解释命题、澄清语言逻辑的思想活动。

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This paper deals with a general-purpose knowledge engineering language ACLIPS, its key facilities and features. The design and implementation of blackboard system in ACLIPS described in detail.

本文在全面介绍通用型知识工程语言ACLIPS的主要功能和特点的基础上，重点讨论了其黑板体系结构的设计与实现方法。

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Good knowledge of French (as a working language of the United Nations system) would be an asset.

UNESCO: Criteria & Requirements