6925| 9
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三坐標測量時是以哪面為基準? |
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點評
要用好三坐標,處理好測量誤差和構造,是大學問啊
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小黑屋|手機版|Archiver|機械社區 ( 京ICP備10217105號-1,京ICP證050210號,浙公網安備33038202004372號 )
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