The transmission method: The hand moves and the straight gear wheel transmission, bevel gear transmission, pneumatics and the liquid moves and the motor-driven explosion proof是什么意思_The transmission method: The hand moves and the straight gear wheel transmission, bevel gear transmission, pneumatics and the liquid moves and the motor-driven explosion proof在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句