For pyritecontaining unoxidized kaolinite,the selective comminution aims at liberating and separating pyrite and its interlocking minerals.

对未经氧化的含黄铁矿高岭岩，择性粉碎的目的是解离并黄铁矿及其聚合体。

The chairs have soft seat, stylized cabriole legs and interlocking hoops in the back for a more formal look.

这款餐椅有柔软的坐垫，优雅的弯曲凳腿以及靠背上的环形图案，是美式餐椅的经典款式。