追溯

The history of pu-erh tea can be traced back to the Eastern Han Dynasty .

有关普洱的历史可以追溯到东汉时期。

The history of tea can be traced back to the Eastern Han Dynasty, dating back 2,000 years.

普洱茶的历史可以追溯到东汉时期，距今已达2000年之久。

But many of the quilt designs are traditional, dating back to the middle of the eighteenth century.

但许多布艺的设计是传统的，可以追溯到18世纪中叶。

Believe it or not, my family goes back to the eleventh century.

信不信由你，我们的家族可以追溯到11世纪

Traceability and testability of requirements have to be concentrated during requirements elicitation and analysis.

可追溯性和可测性的要求必须集中在需求获取和分析上。

Norman Ellsworth Eliason has traced this use of hooker back to 1845 in North Carolina.

诺曼·爱尔斯华斯·艾利森把 hooker的用法追溯到1845年的北卡罗来纳州。

Stable isotope rations, major, trace and radioactive elements in emmental cheeses of different origins. Lebensmittel- Wissenschaft und-Technologie, 2003

碳同位素与氮、氘、氧等其它同位素结合分析，有可能建立一套利用牛尾毛追溯牛生活史的技术方法。

We all have a friend who knew us when...maybe way back in Miss Meltzer's second grade, when our family lived in that tree-room flat in Brooklyn, when our dad was out of work fo seven months, when our brother Allie got in that fight where they had to call the police, when our sister married the endodontist from Yonkers, and when, the morning after we lost our virginity, she was the first, the only, friend we told.

也许可以追溯到二年级的时候，当时我们家住在纽约市布鲁克林区的一套三室公寓。我父亲失业七个月，我哥阿里参与了一起斗殴事件都惊动了警察局，我姐嫁给了一个扬右克斯市的牙根管医师，当我不再是处女的第一个早晨，她是我透漏秘密的第一个且是仅有的一个朋友。

The idea that experience leaves some trace in the brain goes back at least to Plato's Theaetetus metaphor of a stamp on wax, and in 1904 the German scholar Richard Semon gave that ghostly trace a name: the engram.

其实，有关体验会给大脑留下某些痕迹的想法，最早可以追溯到柏拉图有关蜡上印记的比喻中，而到了1904年，德国学者塞蒙把这种精神性的痕迹命名为：记忆印迹。

But the stories of this enigmatic beast date back for hundreds of years.

然而这个神秘的野兽的故事可以追溯到几百年以前。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐