润滑 Traditional 潤滑 rùn huá 🔊 smooth + Review this word Meanings rùn huá 潤滑 smoothoilysleekto lubricate Its characters 润rùnmoist; glossy; sleekHSK 7–9滑huáto slip; to slideHSK 5 In sentences Pinyin 润滑rùn huá系统xì tǒng设计shè jì得dé不好bù hǎo。The lubrication system was poorly designed. #816493 Words with 润滑 润滑油 rùn huá yóu lubricating oil 润滑剂 rùn huá jì lubricant 润滑液 rùn huá yè lubricant