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螺紋的標(biāo)注是什么意思 |
點(diǎn)評(píng)
手冊(cè)上截的....整個(gè)螺紋的一章都看完了,就一個(gè)多線的看起來像點(diǎn)...
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點(diǎn)評(píng)
具體的意思估計(jì)要問畫圖的本人了。
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