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1·The three laws including Joule law, Gay-Lussac law and charles law are simultaneously worked out by use of first , second law of thermodynamics and Boyle law.

利用热力学第一、二定律和玻意耳定律，同时导出了焦耳定律、盖。 吕萨克定律和查理定律。

2·To demonstrate gas laws at physics teaching in senior middle schools. Used for proving Boyle-Mariotte's law, Charles's law, Gay-lussca's law and equation for gases.

中学高中物理演示气体定律作用。可验证玻意耳一马略特定律、查理定律、盖吕隆克定律和理想气体状态方程。