The definitions given by IEC 61850 on logical nodes (LNs), PICOM, event time, transfer time, types and performance classes of message are expounded.

阐述了IEC 61850对逻辑节点、通信信息片、事件时间、传输时间、报文的类型和性能级的定义。

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For example, we might add user interface logic that we want to keep separate from our model, or we might add some classes for performance reasons.

例如，我们可能会添加想与模型分离开来的用户接口逻辑，或者我们可能会出于性能方面的原因而添加某些类。

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Unfortunately, using dynamic proxy classes does have one major drawback: performance.

不幸的是，使用动态代理类确实有一个重要不足：性能。

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Marilyn may have worked more to improve her appearance than to improve her performance in acting classes.

VOA: special.2009.12.06

I want you to recognize classes of algorithms and match what you see in the performance of the algorithm to the complexity of that algorithm. All right?

让我再试一次这么说,我期望大家能通过,算法的复杂度,来看到算法的性能？

麻省理工公开课 - 计算机科学及编程导论课程节选

These performance classes feature the most advanced cornering, acceleration, and braking skills to maximize control in challenging conditions and are designed for driving enthusiasts, law enforcement groups, military specialists, stunt drivers, automotive test engineers, and aspiring and current professional racers.

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Rebalancing within the equity classes will incrementally enhance performance over the long term by enforcing a discipline of selling high and buying low as performance between the various classes varies.

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In the high performance-driving classes, drivers work on autocross, skid pad control and threshold braking, as well as spend lap time on the racetrack.

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