固结了的

Aimed at utilization of iron resources in pyritic slag,the study on production of metallized agglomerate with pyritic slag through coal based DR process was conducted.

为合理利用硫酸烧渣中铁资源，进行了煤基直接还原生产金属化团块研究，提出了润磨造球-预热焙烧-磁选-冷固结工艺流。

This rock contained chalcedonic cement before it underwent diagenesis, a process where low temperatures and low pressures alter the content of sediments before they finally lithify, or turn into rock.

在它经作用之前，它含有燧石质胶结分。作用过中，低温抵压改变了沉积物分，而后固结。