In the asynchronous transfer mode, one can only send and receive one from the Festival and is frequently used method of microcomputers.
在异步传送方式下，一次只能发送和接收一个自节，是微型机经常使用的方法。
It allows users to send and receive data under end to end packet transmission mode.
从而用户能够在端到端分组传送模式下发送和接收数据。
If the send mode is buffered then the message must be buffered if there is no pending receive.
发送完成函数在数据已经被全部拷贝出发送缓冲区后返回。它也许会附带额外的信息，根据发送模式。
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