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| protezione con olio | |||
| oliare | |||
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| oliatura | |||
| 英语 词库 | |||
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| The reprehensible practice of oiling in which a jeweler or seller applies oil to a gemstone to mask inclusions and enhance color. | |||
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oiling : 25 短语, 11 学科 |
| 一般 | 1 |
| 信息技术 | 1 |
| 养鱼（养鱼） | 1 |
| 化学 | 2 |
| 医疗的 | 1 |
| 地球科学 | 1 |
| 建造 | 2 |
| 机械工程 | 11 |
| 纺织工业 | 3 |
| 行业 | 1 |
| 运输 | 1 |