To ensure maintenance in the distribution system, an evident breaking device should be set for the safety of testing and repair personnel.

配电系统中为了确保维护测试和检修人员的安全应有明显的断开装置。

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Adopts safety and reliable spaceflight joint, sufficient protects the stability of the circuit. The whole circuit system, not only easy to install but also maintenance is convenient.

采用安全可靠的航天接头，充分保护电路的稳定性。整并的电路系统，不但安装简易而且维护方便。

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Product quality and maintenance quality of the car retard ers directly affect the control precision of automation control system, the safety and efficiency of the hump marshalling.

车辆减速器产品质量、维护质量的优劣直接影响自动化控制系统的控制精度，影响驼峰编解作业的安全与效率。

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