人民教育出版社2002年12月第二版,全日制通高级中学教科书化学第二册中氨与水的反。实验如下所述:在干燥的圆底烧瓶里充满氨,用带有玻璃管和滴管(滴管里预先吸入水)的子塞紧瓶口,立即倒置烧瓶……立即倒置烧瓶句话说明了前面用带有玻璃管和滴管的塞子塞口时,圆底烧瓶口不是向下 People’s Education Press, Second Edition, December 2002, Anti-Ammonia and Water in Chemical Book II of the Whole-day System of Senior High School Textbooks. The experiment was as follows: Fill the dry round-bottomed flask with ammonia, fill the flask with a glass tube and a dropper (a pre-inhaled water in the dropper), immediately invert the flask... Invert the flask immediately. When the front is plugged with a stopper with a glass tube and a dropper, the mouth of the round bottom flask is not downward