luein.勒丰; 勒丰硬币luabbr.[化]镥（=lutetium）abbr.卢森堡（=luxembourg）Luschka rs foramen第四脑室外侧孔Luoyang Qie Lan Ji洛阳伽蓝记luminescent system发光系统Luofushan moumtain罗浮山lubricating finish润滑整理lumbosacral region腰骶部lubrication system润滑系统luminosity density光度密度lubricating grease滑脂lumbodorsae fascia腰背筋膜