然后，我们的模拟对象将同时实现它替换的组件的服务接口和控制器接口。
Our mock object will then implement both the service interface of the component it is replacing, plus the controller interface. An outline of a mock object implementation would look like
介绍了利用国内常用的脉宽调制型集成控制器对国外装置上开关电源的PWM控制芯片的替换设计。
By means of the commonly-used domestic variable duration impulse integrated controller, alternative design was carried out on PWM control chip of switching power on overseas equipments.
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