But Ajax applications tend to force an application to maintain a connection to a user for long periods of time to keep applications responsive and keep state tracking easy to code.
但是Ajax应用程序可能会迫使应用程序长期维持与用户的连接，这样应用程序才能进行响应并使状态跟踪代码比较容易编写。
The switch signal was encoded directly and one state was expressed with 3 long distance sequence code, then it was transmitted through the digital relay line of telecommunication network.
对开关信号进行直接编码，采用3个连续出现的大码距字节表示开关信号的一个状态，编码后的信号利用电信网的数字中继线路传输。
应用推荐