The characteristics of wulfenite and latest development of wulfenite extractive metallurgy were reviewed.
介绍了彩钼铅矿的特点

出工艺的研究现状。
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的崛起 Now, at the time vanadium metallurgy was cutting edge research, but Henry had an extremely lucky connection: he was friends with the two brothers who owned the one vanadium mine in Peru producing 92% of the world's supply.
当时, 钒冶金
是尖端研究,但亨利有一个极其幸运的关系:他与两兄弟是朋友,这两位兄弟拥有秘鲁的一座钒矿, 该矿生产出全球 92% 的钒矿。
学英语 
的崛起 That faster spread of Eurasian agriculture, compared with that of Native American and sub-Saharan African agriculture, played a role (as the next part of this book will show) in the more rapid diffusion of Eurasian writing, metallurgy, technology, and empires.
与美洲原住民和撒哈拉以南非洲农业相比,欧亚农业的
播速度更快,这在欧亚文字、冶金、
和帝国的更快
播中发挥了作用(正如本书的下一部分将展示的那样)。