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同学,你的乒乓球被打瘪了,有什么办法再使它鼓起来呢? 1.利用空气热膨胀原理的方法:将瘪球放到热水(温度60℃以上)中,使球全部受热,其中空气受热膨胀则加大气压。这样就可能使瘪球鼓起来。 2.利用减小球外界气压的办法:减小球外界气压方
Your classmate, your table tennis ball has been smashed, and what methods can be used to make it bulge? 1. Using the principle of thermal expansion of the air: Put the ball into hot water (above 60°C) so that the ball is heated. In which the air is heated to increase the pressure. This may cause the ball to bulge. 2. Use the method to reduce the outside pressure of the ball: reduce the outside pressure of the ball