4) A properly constructed image orthicon could take television pictures by candlelight owing to the more ordered light sensitive area and the presence of an electron multiplier at the base of the tube, which operated as a high-efficiency amplifier..理想的摄像管能借助于烛光拍电视画面,这是因为在摄 像管下端有感光区和电子倍增器,这种摄像管就是一个高效率放 大器。 注释:介词短语 owing to表原因,相当于 because of;关系代词 which引导非限制性定语从句,修饰先行词 the tube。 202120P15 End2021/2/20 P.15 End 4）A properly constructed image orthicon could take television pictures by candlelight owing to the more ordered light￾sensitive area and the presence of an electron multiplier at the base of the tube, which operated as a high-efficiency amplifier. 理想的摄像管能借助于烛光拍电视画面，这是因为在摄 像管下端有感光区和电子倍增器，这种摄像管就是一个高效率放 大器。 注释：介词短语owing to 表原因，相当于because of; 关系代词 which引导非限制性定语从句，修饰先行词the tube