The high coulomb and current power pulse closing switch is one of the crucial components of the power conditioning system.

脉冲能源系统的关键元件之一是高库仑量大电流的脉冲闭合开关。

youdao

The pulse width modulator SG3525 has been used in various areas for its functions such as locking for the lack of pressure, closing system fault, soft starting, delaying PWM drive and so on.

脉宽调制器SG3525具有欠压锁定、系统故障关闭、软起动、延时pwm驱动等功能，因而得到广泛应用。

youdao

She tried to steady her pulse with a deep breath, but the walls of her throat were closing up.

NEWYORKER: The Repatriates