Overtime is more common. In the process of project implementation, we need to face unexpected events, technical problems and other issues, and we need to work overtime to complete the task. In technology research and development, we need to face complex algorithms, software development and other work, and need to spend more time and energy. In customer service, we need to face customer needs and feedback, and we need to respond and solve problems in time. Xi Zhongxing TT&C Co., Ltd. is a high-tech enterprise engaged in satellite TT&C, navigation and positioning, remote sensing application and other fields.