Bandgap reference source
Bandgap voltage reference source
Current reference source
Differential voltage reference source
High-precision bandgap reference source
radioactive reference source
reference sound intensity
reference sound sources
reference source
对照源
标准放射源
参考源
基准信号电源
参考原始资料
基准源
thermal reference source
Voltage reference source
air-modulated sound source
built-up circular piston sound source
Circular concave sound source
determination of sound source bearing