对S- MAC 协议的改进主要有两种方式：动态调整、区别控制包与数据包的发送条件进行发送。
The S- MAC protocol can achieve better performance by allowing dynamic scheduling, and sending control and data packets under different transmission conditions.
我不能买它的原因说：对不起，这个项目不能被运到新西兰。我能做些什么呢？你可以改变，请发送条件？
I cant buy it cause it says Sorry, this item cannot be shipped to New Zealand. what can I do? Can you change please conditions of sending?
不过，图中消息箭头的语义规定只能在条件有效时发送消息。
The semantics of the message arrows in the diagram do, however, dictate that the message may be sent only if the condition is valid.
应用推荐