本文对英国“工程设计图学杂志”1980年春季难题提出了解法。

This paper presents a solution to the "Spriug 1980 Puzzle" published in U. S. "Engineering Design Graphics Journal".

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在建筑学里，草图和设计图有着天壤之别。

In architecture, there's a big difference between a sketch and a plan.

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在建筑学里，草图和设计图有着天壤之别。

In architecture, there's a big difference between a sketch and a plan.

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