Lights reflected off dust-covered walls creating a ghostly luminescence.灯光照在满是灰尘的墙上，反射回苍白的冷光。The thing of luminescence all is not a gold.发光的东西不都是黄金.With good light collection, about 30 % of the luminescence quanta may re...
Lights reflected off dust-covered walls creating a ghostly luminescence.灯光照在满是灰尘的墙上，反射回苍白的冷光。With good light collection, about 30 % of the luminescence quanta may reach the photocathode.在良好的光收集条件下, 约30%的荧光量子可以到达光阴极.cryst...
She won a silver medal in the high jump.她跳高得了银牌。I want to enter my name down for the high jump.我想报名参加跳高比赛.How many entries are there for the high jump?报名参加跳高比赛的有多少人?...
Petroleum engineers plan and manage the extraction of oil.石油工程师规划并管理石油的提炼。The purpose of oil refinery is to refine crude petroleum.炼油厂的主要工作是提炼原油.They refined crude oil into various petroleum products.他们将原油提炼成各种石油产品....