抗拉强度：Ultimate tensile strength (UTS), often shortened to tensile strength (TS) or ultimate strength,[1][2] is the maximum stress that a material can withstand while being stretched or pulled before failing or breaking. Tensile strength is distinct fromcompressive strength.https://en.wikipedia.org/wiki/Ultimate_tensile_strength屈服强度：yield strengthA yield strength or yield point of a material is defined in engineering and materials scienceas the stress at which a material begins to deform plastically. Prior to the yield point the material will deform elastically and will return to its original shape when the applied stress is removed. Once the yield point is passed, some fraction of the deformation will be permanent and non-reversible. In the three-dimensional space of the principal stresses (), an infinite number of yield points form together ayield surface.https://en.wikipedia.org/wiki/Yield_(engineering)延伸率：ductility is a solid material's ability to deform undertensilestress; this is often characterized by the material's ability to be stretched into a wire.https://en.wikipedia.org/wiki/Ductility断面收缩率：The percentage decrease in the cross- sectional area of a tensile test piece caused by wasting or necking of the specimen. It is expressed as a percentage of the original area of the test piece and is a measure of ductility. 在维基百科里面，比例极限，弹性极限，屈服强度，都指向屈服强度（yield strength)
For Your Information的缩写 英语解释为：提供给您的信息，供您参考 是现在比较流行的英文缩写，常用于电子邮件中 网络释义 FYI 福杨主板〖代号 IT专业英语词汇精选(F2)-通讯电子-词...FYI 福杨主板〖代号〗 例句与用法: 1. For your information (ie This is sth you may wish to know), the library is on the first floor. 谨奉告, 图书馆在二楼. 2. A copy of the provisional agenda in enclosed for your information. 随信寄上一份暂定议事的日程安排供参考。 NB：一般在外企转发邮件，如果没有想添加的话就直接转发，但是空白的话又不太礼貌，就直接写FYI。其他什么都不用。 例如销售经理接到了市场部发的一封市场推广计划，销售经理直接转发给下面的销售，只加了FYI，意思是请大家看看注意一下。 或是其他部门需要你提供一份什么资料，你可以直接把资料附件附在上面，然后正文写FYI即可。
huyingheng
