But rather than maintain the tasks in a run queue, as has been done in prior Linux schedulers, the CFS maintains a time-ordered red-black tree (see Figure 1).
但是与之前的Linux调度器不同，它没有将任务维护在运行队列中，CFS维护了一个以时间为顺序的红黑树(参见图1)。
The features of DSALM mainly includes: (1) Easy to implement, it doesn't have to construct and maintain a complex multicast tree, and also doesn't have to deploy multicast communication protocol.
DSALM的优点主要包括：1易于实现：不需要构建和维护复杂的结构化覆盖网络，也不需要部署特殊的组播通讯协议。
We prune and train to achieve and maintain a form of tree which is desirable for easy maintenance, high yields and good fruit quality.
通过修剪和整形，我们得以建成一个高产优质便于管理的理想树形。
In traditional IP multicast, data for a given group is forwarded through a tree structure covering the members of this group. The on-tree routers must maintain a per-group forwarding state.
在传统组播中，组播组数据由一棵覆盖所有组成员的组播树进行转发，树上路由器必须保存每一个组播组的转发状态。
In order to make it more convenient and more effective to add, delete, update and query a data warehouse through QC-tree, this paper suggested how to incrementally maintain and query QC-tree.
为使通过QC树对数据仓库进行常规的增删改操作和查询操作变得更加方便和高效，提出了QC树增量维护和有效查询的详细实现算法。
In order to make it more convenient and more effective to add, delete, update and query a data warehouse through QC-tree, this paper suggested how to incrementally maintain and query QC-tree.
为使通过QC树对数据仓库进行常规的增删改操作和查询操作变得更加方便和高效，提出了QC树增量维护和有效查询的详细实现算法。
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