If you want to be a draftsman, a machinist, a molder, or a patternmaker, you'll need algebra and geometry and even trigonometry.

如果你想成手艺人、缝纫、造型或制模，你需要代和几何，甚至三角学。

Consequently, the stand or fall of patternmaking master technology will affect the integral quality of the mould directly.

因而，制模师傅技术将直接影响到模具整体质量。