rotary convertor造句

例句与造句

1. Utilities used single armature rotary convertors for changine megawatts of dc to ac, ac to dc, dc to higher / lower voltage dc, or ac to ac at a different frequency, or single phase to multiphase ac . Edison 18 : 09, 30 September 2006 ( UTC)
2. It's difficult to find rotary convertor in a sentence. 用rotary convertor造句挺难的