单词k-t-
网络: 操纵性指数；应力集中系数；税收乘数
The discovery was made just a few centimeters below what became the K-T boundary line.
这一发现是只是一个几厘米低于成为KT边界线。
Moreover, what the company ammonium nitrate uses is French K-T pressurizes the neutral technology, is the international advanced standard.
而且，公司硝铵采用的是法国K-T加压中和技术，属国际领先水平。
But chances are that you probably don"t have the same K. T. as you started with.
但偶然你大概不能有与你开始用的相同康普茶。
As such, these puny foraminifera serve as very distinct tags of when the K-T extinction event started.
因此，当K-T灭绝事件开始时这些微小的有孔虫充当十分鲜明的标签。
When you thaw frozen K. T. and use it to start a new culture, at first it may seem that everything is fine.
当你融化冰冻康普茶和应用它启动新的培养物，开始它看上去每件事情都是美好的。
And there they would hide for 160 million years, until liberated by that K-T asteroid.
他们还将再藏1.6亿年，直到被白垩纪第三季小行星解放。
Then, in 1991, researchers discovered a 120-mile-wide, 1. 5-mile-deep crater called Chicxulub in Mexico of the same age as the K-T boundary.
随后，在1991年，研究人员在墨西哥发现了与K-T界限在同年代的一个直径120英里宽，1.5英里深的陨石坑，被称为Chicxulub。
In 1990, working on the K-T extinction for ten years, I moved to South Africa to begin work twice a year in the great Karoo desert.
1990年，在研究了白垩纪第三纪灭绝10年之后，我搬到了南非，开始在大卡鲁沙漠工作，一年两次。
So if burning forests didn"t create the K-T boundary soot, what did?
如果产生K-T分界线灰烬的不是燃烧的森林，那又是什么呢？。
This is the famous K-T. A 10-kilometer body hit the planet.
这是著名的白垩纪第三纪灭绝事件。一个直径10公里的物体撞击了星球。