... primary chamber 主燃烧室；一次风室 primary circuit 一次回路，前置回路；初级电路，一次电路，原电路；一级管网 primary circuit pressure boundary 一回路压力边界 ...
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电子控制单元。包括由转速传感器控制的开关晶体管，用来断开或接通初级电路。
Electronic control unit. Contains a switching transistor controlled by a speed sensor and is used to open and close the primary circuit.
还提出了模拟高频开关变压器初级电压的实验电路。
An experiment circuit to simulate primary voltage of HF switching transformer is put forward.
在变压器的初级使用二极管钳位电路，可以有效地抑制变压器次级的寄生振荡。
And the diode clamp circuit introduced in the transformer primary can apparently restrain from the peak voltage resonance in the rectified diodes.
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