A smokeless explosive powder consisting of nitrocellulose,nitroglycerin,and petrolatum that has been dissolved in acetone,dried,and extruded in cords.是什么意思_A smokeless explosive powder consisting of nitrocellulose,nitroglycerin,and petrolatum that has been dissolved in acetone,dried,and extruded in cords.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句