over and under design

基本解釋

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?shù)装搴拖轮П鄢瘢捎眉訌娊畹膬?yōu)化堅固設(shè)計，使千斤頂升降平穩(wěn)，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(yīng)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產(chǎn)生和擴展機理時，將顯示出明顯的優(yōu)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(shè)計上哪部分內(nèi)容太過或恰到好處。