英语词汇“downward light output ratio (of a luminaire)”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	downward light output ratio (of a luminaire)
释义	downward light output ratio (of a luminaire) 下半球照明具效率
随便看	helmholtz law Helmholtz layer Helmholtz potential Helmholtz principle of minimum energy dissipation Helmholtz reciprocity theorem Helmholtz relation for solid deformation helmholtz resolution Helmholtz resonance Helmholtz resonator Helmholtz resonators Helmholtz reversion theorem helmholtzs helmholtz's ligament Helmholtz's ligaments Helmholtz's line Helmholtz's theorem Helmholtz's theory Helmholtz's theory of vision helmholtz's vortex theorem helmholtz term Helmholtz theorem Helmholtz theory Helmholtz wave helmholtz wave equation Helmholz resonator 奈犹被奈病余孤负金罍奈离别如今真个是奈稜虎豹奈蝶怨良宵岑寂奈酒行有尽情无极奈雨覆云翻奈香云易散奉使虚随八月槎奉帚平明金殿开 15240 15241 15242 15243 15244 15245 15246 15247 15248 15249