This Paper describes the relationship be-force functional point of the occlusal rest by tween the occlusal rest space slope and the analysis of the mathematic.
本文通过对支托间隙斜度的数理分析，讨论了支托间隙斜度与支托力作用点的关系。
The function of humanity force is also in line with the theory of three elements: strength, direction and functional point.
人文力的作用同样遵循着大小、方向、作用点的三要素原理。
The utility model provides a multi-functional neutral pen which can fluently write under the zero gravity state or when the gravity does not point to the component force of a pen point.
本实用新型提供一种多功能中性笔，使其在失重状态或重力无指向笔尖分力时也可流利书写。
The utility model provides a multi-functional neutral pen which can fluently write under the zero gravity state or when the gravity does not point to the component force of a pen point.
本实用新型提供一种多功能中性笔，使其在失重状态或重力无指向笔尖分力时也可流利书写。
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