Travel switch and its wiring system: When carriage drives the lance tube moving, the travel of Soot-blower is controlled by travel switch.是什么意思_Travel switch and its wiring system: When carriage drives the lance tube moving, the travel of Soot-blower is controlled by travel switch.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句