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| 样板图 (是草图“近似形状”和文字说明来帮助工人了解样板的大致形状、制造依据和材料，以及工艺上的其他要求 (如钻孔)的工艺单) | |||
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templates drawing : 1 phrase in 1 subject |
| Technology | 1 |
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