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。
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