five-phase system 五相系统
two phase five wire system 双相五线制 ; 两相五线制
two-phase five-wire system [电] 两相五线制
Three-phase five little system 三相五线制
tow-phase five-wire system 二相五线系统
three-phase five-wire system 三相五线制
three phase five wire system 三相五线制
The system software involves five main modules: initialization module, phase-changing module, current-regulating module, speed-regulating module and timer interrupt module.
软件分为五块：主程序中的初始化模块、换相子程序模块、电流调节、速度调节子程序模块，定时器中断程序模块。
From chapter three to chapter five, the three key components of the system: millimeter-wave phase locked sources, multiple frequency local source, low noise amplifier are designed and tested.
第三章至第五章分别介绍了毫米波锁相源、二倍频本振源和低噪声放大器三个系统关键的单元电路的设计过程和测试结果。
Remark: every wire of the three-phase five-wire system is clearly indicated on the front panel.
注：每一块面板清晰显示三相五线制电源的母线、支线。
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