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Từ điển WordNet v3.1 - WordNet Dictionary
lubrication
1. the condition of having been made smooth or slippery by the application of a lubricant
• Derivationally related forms:
lubricate
• Hypernyms:
condition, status
2. an application of a lubricant to something
• Derivationally related forms:
lubricate
• Hypernyms:
application, coating, covering
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