Pure white and wonderfully delicate, porcelain is what clay potters usually graduate to only after years of honing their skills.
纯白色和奇妙微妙，瓷器是粘土陶工研究生通常只有经过多年的磨练他们的技能。
2
Although the main clay mineral is kaolinite, the structural change during heating is different from pure kaolinite.
其主要粘土矿物是高岭石，但加热相变有别于纯净的高岭石。
3
The traditional deep-hole blasting for tunnels USES pureclay to stem the blast-holes. The efficient energy availability of explosive is not high and the specific explosive consumption is large.