您已经了解了查询模型的不同方法，并看到了如何使用RDQL简明地表达任意查询。
You've also looked at different methods of querying a model and seen how RDQL can be used to concisely express arbitrary queries.
本系统能够任意查询江苏省所有植物的中文名、拉丁名、所属科名、属名；
Chinese name, Latin name, family name, genus name of all plants in Jiangsu could be searched using this system.
您可以通过查看查询中的最小时间项，以及查询中处理一个项目所需要的平均时间，来访问任意查询的效果。
You can assess the effect of any queue by looking at the minimum time items are in the queue, as well as the average time taken to process an item in the queue.
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