QBTL is designed specially for use as a four-valued threshold gate with which varied four-valued composite logic circuits can be formed.

其中QBTL设计成可单独作为四值“阀”门使用，用于构成其他四值组合逻辑。

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A new three-valued logic (TVL) threshold gate circuit simple in structure and suitable for IC manufacturing is described. A three-valued t gate IC for multiple purposes is designed.

本文介绍了一种结构简单、适于集成化的三值“阈”门电路，并设计了一个多功能三值T门集成电路。

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I love better than any theory the sound of the Gate of Ivory, turning upon its hinges, and hold that he alone who has passed the rose-strewn threshold can catch the far glimmer of the Gate of Horn.

比起理论来，我更喜欢象牙之门的声音，喜欢聆听铰链的转动，并相信，倘若一个人能越过撒满玫瑰的门槛，他便能望见远方牛角之门的微光。

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