機械製図
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あの大神さんは機械図面を素早く理解するための本を持っているんですが、書店で買うと高すぎます。少し学びたいので、共有してもらえませんか？感謝します\ud83d\ude0a17648179839@163.com
簡単な定規とコンパスを使った図形の描き方を身につければ、機械製図も問題なく理解できる~~~
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