difference - a disagreement or argument about anything essential; "he experienced a dispute together with his wife"; "there have been irreconcilable differences"; "the familiar conflict between Republicans and Democrats" And therein I do think I am able to lay my finger upon the difference between the seamen of yesterday, https://thermal-shock-vs-thermal68900.bloggerswise.com/43811434/considerations-to-know-about-pcb-thermal-cycling-failure-modes