浊斑

The feature of earth chemistry of volcanic rock in Xiangshan Group reflects that it belongs to the series of oceanic tholeiite in oceanic spreading tectonic environment.

结果 香山群的时代划归为中晚寒武世较合适；香山群主体是一套由板岩、细、粉砂岩和砂岩组成的浊积岩系，其砂岩类型主要是长石石英砂岩、细粒石英砂岩和粉砂质石英砂岩，前寒武纪变沉积岩和花岗片麻岩为主要碎屑来源和物源区组成；砂岩的岩石地球化学特征指示香山群属发育在被动大陆边缘斜坡环境中的沉积物，火山岩岩石地球化学特征反映其应属大洋扩张构造环境下的大洋拉斑玄武岩系列。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。