over and under design

基本解释

Electric jack slab and under arms are over thick, using reinforced optimization strong design, make jack lifting smoothly, won't be out of shape.
电动千斤顶底板和下支臂超厚，采用加强筋的优化坚固设计，使千斤顶升降平稳，不会变形。
The superiority of this design over the conventional one will reveal itself in the studies on the mechanisms of crack initiation and growth in fatigue process under bending condition.
这种等应力试样在研究弯曲疲劳，尤其是在弯曲条件下研究疲劳过程中裂纹产生和扩展机理时，将显示出明显的优越性。
It’s a great opportunity to figure out where the design’s content is over and under served.
这是一个很好的机会，找出在设计上哪部分内容太过或恰到好处。