对用户呈交的交互式查询，用此算法可在很短的时间内产生查询处理策略，并可获得很短响应时间。
The algorithm will produce a strategy to process interactive queries submitted by users in a short time and response quickly.
此应用程序的响应时间必须很短：规定为发出指令后 3 秒内。
The application's response time needs to be very short: As stipulated, it is to be on the order of three seconds.
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