现用新编初中二年级物理教材“大气压”一节,课本中提出了一个演示大气压作用的小实验:一个略大于瓶口的去皮鸡蛋在瓶内外气体压差作用下落入瓶内,这个实验学生有条件自己作,但取出鸡蛋较困难,略作启发,学生可以想到,利用惯性取出,但易损坏鸡蛋。我们将演示实验略作了改进,改用吸滤瓶,可 A new junior middle school physics textbook named “Atmospheric Pressure” is being used. A small experiment demonstrating the effect of atmospheric pressure is presented in the textbook: a peeled egg slightly larger than the bottle mouth is dropped into the bottle by the pressure difference between the inside and outside of the bottle. The students in this experiment had the condition to make their own, but it was more difficult and slightly inspired to take out the eggs. The students could think of using inertia to remove them, but they could easily damage the eggs. We will slightly improve the demonstration experiment and use suction bottle instead.