Inflatable membrane reflector is usually non-developable surface, made by a number of plain membranes splicing and paste into the overall membrane surface.
充气膜结构反射面通常是不可展曲面，需要由多个平面膜片拼接并粘贴成整体曲面。
A method of modifying the double enveloping worm gearing with developable tooth surface has been proposed to reduce the sensibility of the worm gearing to the manufacturing errors.
提出了对二次包络环面蜗杆传动修形的方法，以降低蜗轮副对制造误差的敏感性。
The method to construct the blade surface of developable impeller of vehicle turbocharger is investigated.
针对车用涡轮增压器压气机叶轮，研究利用可展直纹面构造叶片曲面方程的方法。
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