In in heavy construction curved surface foundation, design product structure.
在重构曲面的基础上，设计产品结构。
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。
Master CAD drawing, knowledge chart, the 3 d modeling, curved surface has the certain basis;
熟练掌握CAD制图、识图，对三维建模、曲面有一定的基础；
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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