In the master -slave multi -computers communication system, slave computer is merely in the position of slave, so it can't initiatively request to communication.
在主从式多机通信中，由于从机完全处于从属地位，因此不能主动请求与主机通信。
In the master -slave multi -computers communication system, slave computer is merely in the position of slave, so it can't initiatively request to communication.
在主从式多机通信中，由于从机完全处于从属地位，因此不能主动请求与主机通信。
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