The data was divided into4 - frame by system and fixed length was adopted to set up communication protocol.

系统将数据分为4中帧，采用固定长度制定通信协议。

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The data was divided into4 - frame by system and fixed length was adopted to set up communication protocol.

系统将数据分为4中帧，采用固定长度制定通信协议。

youdao