a smokeless explosive powder consisting of nitrocellulose,nitroglycerin,and petrolatum that has been dissolved in acetone,dried,and extruded in cords

• 无烟线状火药，一种无烟炸药，由硝化纤维素、硝化甘油和凡士林组成，在丙酮中溶解，风干并压成绳状