图纸必须按方便制造零件的方式将设计者的要求真实和完整地表达出来。
The drawing must be a true and complete statement of the designer's requirements expressed in such a way that the part is convenient to manufacture.
像红色这种比较方便制造的颜色就能比较早的出现在各大文明的认知中。
A color like red, which was fairly easy for many cultures to make — they began to see that color fairly early on.
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