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Terms for subject Oil / petroleum containing Class of | all forms | exact matches only | in specified order only
| English | Chinese |
| class of fit | 配合公差等级 |
| class of fit | 拟合等级 |
| class of symmetry | 对称型 |
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| English | Chinese |
| class of fit | 配合公差等级 |
| class of fit | 拟合等级 |
| class of symmetry | 对称型 |