科学家拟定的“电子图纸”详细说明了食物原料的调配方法，该图纸是用传统工程学中的计算机辅助设计(CAD)软件绘制而成的。
An electronic blueprint states exactly what materials go where and are drawn up using traditional engineering computer-aided design (CAD) software.
第一步是，发布规格说明和机械图纸。
Our first step is releasing the specifications and mechanical drawings.
这些图纸应说明备用连接的所有的必要尺寸，安装接头，位置和尺寸。
These drawings shall show all necessary dimensions, all field joints, location and sizes of auxiliary connections.
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