Sulfur-iron mine的用法和樣例：
例句
- Potassium iron blue of high quality was prepared from pyrite cinders.
以硫鐵礦燒渣為原料制備鉀鐵藍。 - The problem of high iron content in zinc concen-trate can not be resolved by single floatation flowsheet because theiron content of sphalerite contaminated in pyrite is high.
由于東升廟硫鐵礦共生閃鋅礦的含鐵量高，所以采用單一浮選流程不能解決鋅精礦鐵雜質(zhì)含量高的問(wèn)題。
