Test condition, carriagespeed, and resistance measurements are described.
介绍了试验状况、拖车速度和阻力测量设备。
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The new generation of Siemens 6RA70 series d. c. speed adjustment device is selected as the key controller of the system, which satisfies the requirements of controlling carriagespeed well.
Most of my time was spent not looking out of the panoramic windows, but at the digital display above the carriage compartment door showing the speed as it pushes on to 310km/h .