Although different access paths for the same SQL statement produce the same result set, they most likely do not perform the task with the same level of performance.
虽然相同sql语句的不同访问路径会产生相同的结果集，但是它们很有可能不会通过同样的性能级别来执行任务。
The experiment found that though there was no difference in performance - the tasks were very easy - the level of activity in the subjects' brains differed, suggesting different levels of effort.
这项实验发现，尽管表现没有区别——任务相当简单——被研究对象脑部的活动级别不同，显示了努力程度不同。
Similarly, in DB2 z/OS, there are different types of traces that will run at sub-system level to collect information that you normally require for monitoring and performance tuning.
类似地，在DB2z/OS 中，会在子系统级运行不同类型的跟踪，以收集监控和性能调优通常所需的信息。
There is no evidently difference when adding different level of se-yeast and vitamin E between indexes of slaughter performance (P>0.05).
日粮中不同水平的有机硒和维生素E对寿隐杂交鸡的各项屠宰性能均无显著影响（P>0.05）。
This year the situation is slightly different, and because we don't have a car that's able to compete on the highest performance level.
今年的情况有点困难，因为我们的赛车不一定可以发挥出最佳的状态。
Quality of service is the ability to provide different priority to different applications, users, or data flows, or to guarantee a certain level of performance to a data flow.
服务质量的能力，以提供不同的优先级不同的应用程序，用户或数据流或数据流，以保证一定的性能水平。
An improved algorithm for symbol synchronization and symbol decision are proposed. Their performance at different level of SNR and frequency offset are discussed by simulations.
本文提出了一种改进的码元同步算法和改进的码元判决算法，通过仿真分析了它们的抗噪声和抗频偏性能。
An improved algorithm for symbol synchronization and symbol decision are proposed. Their performance at different level of SNR and frequency offset are discussed by simulations.
本文提出了一种改进的码元同步算法和改进的码元判决算法，通过仿真分析了它们的抗噪声和抗频偏性能。
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