Fit the CO2 gas cylinder in an upright position so that it is firmly in place with its top pointing upwards, if possible on the same trolley as the insufflator.是什么意思_Fit the CO2 gas cylinder in an upright position so that it is firmly in place with its top pointing upwards, if possible on the same trolley as the insufflator.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句