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气缺类问题是典型的热学综合题．从近几年高考试题看，这类问题年年有．现对近几年高考中的活塞气缸问题归类分析，并总结出解决这类问题的一般方法．１活塞气缸系统处于平衡状态时的问题 活塞气缸系统处于平衡状态时，需要综合应用气体定律和物体的平衡条件来求解．１．１活塞
Gas deficiency problem is a typical thermal synthesis problem. From the high examination questions in recent years, this type of problem has been observed year after year. The analysis of piston cylinder problems in the college entrance examination in recent years is classified and the general methods for solving such problems are summarized. Problems when the piston cylinder system is in equilibrium When the piston cylinder system is in equilibrium, it is necessary to apply a comprehensive application of the gas law and the equilibrium conditions of the object to solve. 1.1 Pistons