广义支持函数是平面凸域的一个非常重要的概念，它在讨论凸域的包含测度问题中起关键的作用。
Generalized support function is a very important concept in plane convex sets, it play a crucial role in discuss kinematic measure of convex sets.
本文简述了凸底锭形状及凸底对提高板坯收得率所起的作用。
This paper describes the shape of truncated pyramid bottom ingot and its effect on slab yield.
其结构特征是在牙刷柄于刷毛背面位置上设有凸粒，在刷牙时该凸粒对口腔膜起按摩作用。
The utility model is characterized in that brush bristle backside of a toothbrush handle is provided with convex grains to massage oral membrane.
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