petrified相关论文
石化是中介语的一部分。石化现象是中介语发展过程中规则与目标语规则不一致时,就产生了石化。石化现象在我国外语学习者中非常普......
在新昌早白垩世盆地中存在丰富的硅化木,它们是重要而又典型的古植物地质遗迹,新昌硅化木赋存的地层为早白垩世馆头组,其岩石类型包括......
Phototropism of Petrified Wood and Its Relation with the Rotation of Different Blocks in China and t
Normally, trees on the side directly exposed to sunlight will grow faster than the opposing side. This phenomenon is ter......