It is analyzed the current use of pyrite cinder in Chenxi County and made an in-depth discussion on the new technology for the preparation of iron concentrate powder from pyrite cinder.
针对辰溪县硫铁矿烧渣的利用现状，以硫铁矿烧渣为原料，制取铁精粉的新工艺进行探讨。
2
Had she been an uncharitable woman she could have ruled the county with an iron rod of caricature.
倘若她是个厉害苛刻的女人，她便早已用她那长于漫画的铁笔，把全郡都治得服服贴贴了。
3
There are well-found category mineral resources in Antu county area, 50 kinds of minerals have been discovered, such as gold, coal, basalt, molybdenum, Iron, mineral water, terrestrial heat etc.