1) pop-in
[英]['pɔpin] [美]['pɑpɪn]
突跃
1.
When CTOD (crack tip opening displacement) tests for welded joint of offshore-oil-platform steel EH36 were performed at-15℃ according to test standard BS7448, phenomenon called pop-in appeared in weld and heat- affected zone of many specimens which had been pre pared by single or twin wire submerged arc welding respectively.
根据BS 74 4 8试验标准 ,在对海洋石油平台用钢EH36单、双丝埋弧焊接头的焊缝和热影响区 (HAZ)进行低温下 (- 15℃ )裂纹尖端张开位移 (CTOD)测试时 ,多个试样出现了”突跃”(F -V曲线上瞬间载荷下降、位移增加变慢 ) ,亦称”POP -IN”现象。
2) titration jump
滴定突跃
1.
In this paper,we study the influence factors about acid-base titration jump and the stoichiometric point by deducing approximate calculation formula of acid-base titration.
本文推导出了强酸强碱、一元弱酸弱碱、多元弱酸弱碱滴定突跃、化学计量点的近似计算式,用公式说明了影响滴定突跃的因素及化学计量点的位置,并得出了一些重要结论。
4) sudden change of pH
pH突跃
1.
From PBE, which reflects the most rigorous quantitative relation of the displacement of the protons in acid and alkaline reaction, the essay combines the error requirements that the quantitative analysis allows, studies the problem of sudden change of pH in weak acid and alkaline titration, reaches the specific calculational formula and offers a solution for this kind of problem.
从反映酸碱反应中质子转移的最严密的数量关系———质子条件 (PBE)出发 ,结合定量分析计算所允许的误差要求 ,对滴定弱酸碱时的pH突跃等问题进行了研究 ,导出了具体的计算公式 ,给出了处理该类问题的方
5) jumping off point of the sudden change
突跃起点
6) end point of the sudden change
突跃终点
补充资料：隐跃跃
1.隐隐约约。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条