交直流 meaning in Chinese

ac-dc
alternating current-direct current

Design of a controllable ac - dc coupled signal source
可控耦合交直流信号源设计
The design of voltage amplifier for dc ac standard supply
交直流标准源电压放大器的研制
Development of alternating and direct signal generator with many uses
多功能交直流信号源的研制
Application of uhv ac dc transmission technology to sichuan power grid
特高压交直流输电技术在四川电网的运用
50 mhz current probe , ac dc
50 mhz电流探头交直流

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