【摘要】 本文介绍便器洁具的组成，分析各种进水阀和排水阀中应用的力学原理，并从力学角度比较各种产品的特点．更多还原

【Abstract】 This article describes the fittings of cistern and the application of mechanical principles in various inlet and outlet valves of a cistern. The characteristics of different products are compared from a mechanical view.更多还原