To satisfy the actual need for monitoring the pantograph slipper s abrasion,a test equipment based on ultrasonic measurement and TMS320LF2407A DSP chip is proposed.是什么意思_To satisfy the actual need for monitoring the pantograph slipper s abrasion,a test equipment based on ultrasonic measurement and TMS320LF2407A DSP chip is proposed.在線翻譯_英語_讀音_用法_例句