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.
電動千斤頂底板和下支臂超厚，採用加強筋的優化堅固設計，使千斤頂陞降平穩，不會變形。
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.
這種等應力試樣在研究彎曲疲勞，尤其是在彎曲條件下研究疲勞過程中裂紋産生和擴展機理時，將顯示出明顯的優越性。
It’s a great opportunity to figure out where the design’s content is over and under served.
這是一個很好的機會，找出在設計上哪部分內容太過或恰到好処。