The research present situation and advancement of growth structure of nacreous layer are discussed 对珍珠层生长结构的研究现状与发展趋势予以了综述和讨论。
2.
The world economic growth structure of " center - periphery " which has obvious hierarchy is the cause why developing countries are subjected to unfair treatment during the process of globalization 但是“现代科学技术和经济全体化的发展，并没有使世界各国都普遍受益，世界发展中的不平衡更趋严重。 ”
