The fan is usually mounted on an extension of the water pump shaft and is driven by V-belt from a pulley mounted on the front end of the cramshaft.是什么意思_The fan is usually mounted on an extension of the water pump shaft and is driven by V-belt from a pulley mounted on the front end of the cramshaft.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句