The widgets package contains controls based on the operating system controls, while the custom package contains controls that extend beyond the operationsystemcontrol set.
窗口小部件包中包含一些基于操作系统控件的控件，而定制包中则包含一些超出操作系统控件集之外的控件。
2
This dissertation focuses on the research of parallel operationcontrolsystem about modular inverter.
本文致力于模块化逆变电源并联控制系统的研究。
3
The operationcontrolsystem of Shanghai Maglev Demonstration Line plays a crucial role in the automatic control and safety protection of the train.