acting line

The analysis is made of the strength and direction of the buoyancy and then more discussion is made on the acting line, acting point and the features of the buoyancy for the purpose of strengthening the understanding of this concept.

从推导浮力的大小和方向入手,着重探讨浮力的作用线、作用点以及这个力的性质,从而加深对浮力概念的理解。

This paper introduced the functionary line increment means meanings and its appliance occasions;illustrated the foundation and the analytic course on the functionary line increment means analytic system by instances; put forward the increment triangle, which is an important analytic tool.

介绍了作用线增量法的含义及其应用场合;用实例说明了作用线增量法分析系统的建立和分析过程;提出了一个重要的分析工具———增量三角形;用齿轮几何偏心与啮合线增量关系的分析实例说明了作用线增量法的应用。