This paper introduce a simple and practical calculating method for the curved surface of mask.
介绍一种简单而实用的荫罩曲面的计算方法。
Equal efficiency curved surface production function is a new concept.
等效益面生产函数是一个崭新的概念。
Seems the level isn't outstanding without curved surface.
好像水平不高么，没有曲面。
Membrane structure has a complex shape, the unique curved surface and rational stress mechanism.
膜结构具有复杂的造型、独特的空间曲面与合理的受力机理。
What do we mean to talk about a straight line on a curved surface?
关于曲面上的直线，我们指的是什么？
Research of complex curved surface machined on the platform has been done.
基于此开放式数控平台，进行了复杂曲面加工的研究。
The curved surface blackboard is the ideal teaching appliance.
是理想的教学用具。
The curved surface blackboard is the ideal teaching appliance.
是理想的教学用具。
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