B: in the museums we can see that Chinese copper money had a long history.
B：在博物馆里我们可以看到中国使用的铜币具有很悠久的历史。
In the museums we can see that Chinese copper money had a long history.
在博物馆里我们可以看到中国使用的铜币具有很悠久的历史。
The effects of cyclic strain amplitude history and mean strain on the cyclic deformation behavior of pure copper were investigated.
揭示了紫铜在应变循环下的循环应变幅值历史、平均应变对循环特性的影响；
The factory for many years the history of copper production.
本厂已有多年的铜制品生产历史。
This is very helpful for studying the exportation range of the products from the Dajing ancient copper smelting site and the metallurgical history in the western Liaoning Province.
这一结论，对探讨大井古铜矿冶炼产品的使用范围和辽西地区的冶金历史有重要意义。
Copper oxide ore in mineral processing production had been more than 50 years' history since the late 50s from the 20th century in China.
我国氧化铜矿的选矿生产从20世纪50年代中后期开始，至今已有50多年历史。
"UNIFEM good" in the tomb also excavated four Miantong Jing, the Chinese use of copper mirrors the history dates back to before 3000.
在“妇好”墓中还发掘 出四面铜镜，把中国使用铜镜的历史上溯到3000年以前。
In chapter 2, we review the history of photoemission study about the copper oxide high-temperature superconductors copper oxides.
第二章介绍了人们对高温超导铜氧化物的光电子谱的研究历史。
The copper ore leaching had been put into practice with a history of about 1000 years and was once well-developed in Soong Dynasty (960-1279 A. D. ) .
我国铜矿石浸出的生产实践距今已有约一千年的历史，并曾在宋朝（公元960—1279年）时一度十分发达。
Copper leaching was an important discovery in the history of metallurgy in China. 2000 years ago, our ancestor already knew the phenomenon of copper displacement by iron.
浸出法采铜是我国冶金史上一项重要发明创造。 2000年以前，在我国已经对铁置换铜有了认识。 10世纪后期用于生产。
Copper leaching was an important discovery in the history of metallurgy in China. 2000 years ago, our ancestor already knew the phenomenon of copper displacement by iron.
浸出法采铜是我国冶金史上一项重要发明创造。 2000年以前，在我国已经对铁置换铜有了认识。 10世纪后期用于生产。
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