例句與造句

1. Direct current amplifiers - characteristics and test methods
   直流放大器特性和測試方法
2. Direct current amplifiers ; characteristics and test methods
   直流放大器.特性和試驗方法
3. Logarithmic direct current amplifier
   對數(shù)直僚大器
4. Fast direct current amplifier
   快直流放大器
5. It's difficult to find direct current amplifier in a sentence. 用direct current amplifier造句挺難的