The operation efficiency of SQL sentence is very important for improving the answer speed, decreasing network flow and improving work efficiency.
SQL语句的执行效率对于提高应用系统的响应速度，减少网络流量，提高工作效率具有很重要的作用。
The above is the work flow that the network marketing workers should understand.
以上是一个网络营销工作者应该要懂的工作流程。
The prediction of network traffic flow is a problem of great significance in the research work of resource allocation and congestion control.
在高速网络资源分配与拥塞控制研究中，网络业务流量的预报是一个具有重要意义的课题。
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