This section briefly reviews the main features of PDI when displaying performance data.
本节简要讨论PDI显示性能数据方面的主要特性。
Load also has useful extra features, but the main reason for using load instead of inserts would be improved performance.
load也有一些有用的额外功能，但是我们使用load而不使用insert的主要原因是可以提高性能。
The main structure design features and the optimized selection of the dynamics performance parameters of the bogie are expounded.
阐述了转向架的主要结构设计特点和动力学性能参数的优化选择。
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