Int he paper , classify clay area into hard rock dickite, altered kaolin and sandy kaolin.将区内高岭土分为硬质地开石 、 蚀变高岭土和沙质高岭土.Computers allow the plans to be fine-tuned and to be altered quickly.计算机使得这些图样能够得到细调，并且可以迅速更改。And DPR ...
He was headmaster of a public school in the West of England.他是英格兰西部一所公学的校长。You need a thick skin to be a headmaster.要当校长，你就得脸皮厚一些。The headmaster is waiting for someone to own up.校长在等着有人站出来承认。...