An odor of copperas issued in puffs from the roofs of the neighboring factory.
阵阵硫酸化合物的气味从附近一家工厂的房顶上冒出来。
The major ore mineral in the Shijuli copper deposit is chalcopyrite, copperas stone and so on.
石居里铜矿床矿石中主要矿石矿物由黄铜矿及黄铁矿等组成。
Copperas prepared by a reduction method of mechanically activated pyrite from pyrite cinder is featured by low cost, fast reaction speed and high quality.