广西快乐十分期号规律
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DDF型接触网放线车 Model DDF catenary setting and stretching car
DDF型接触网放线车为无动力车,作业时需要和接触网架线作业车连挂编组组成架放线作业车组。放线张力由带有蓄能器的液压系统控制,易于保持放线张力。
Model DDF catenary setting and stretching car is a non-powered car, which requires coupling and marshalling with the OCS installation car to form an installation/setting and stretching working car during work. The setting and stretching tension is controlled by hydraulic system with accumulator, so that the setting and stretching tension can be properly maintained.

该车适用于标准轨距的地铁接触网导线和承力索的架线、日常维护和事故抢险作业。
The vehicle is applicable to installation, routine maintenance and emergency rescue of OCS wire and carrying cable for standard track gauge metro line.

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