There are plentiful mineral resources of nickel , cobalt , and copper in the northwest region of china , specially jinchuan superlarge copper - nickel sulflde magmatic deposit in gansu province , known for its large scale and typical metallogenetic feature in the world , is an important source of ni - cu metal mineral resource in our country . in contrast , jianchaling large cobalt - bearing nickel sulflde deposit in shannxi province is not famous and unmined , but many problems about the deposit are researched because of its special geologic settings and mineralization characteristic 我国西北地区有着丰富的镍、钴、铜等金属的矿产资源，尤其是甘肃省金川超大型铜镍硫化物岩浆矿床，以其超大规模及其典型的成矿特征而闻名于世，是我国重要的镍、铜金属矿产基地，而相比之下，陕西省煎茶岭大型镍(钴)矿床规模较小且未开采，但因其独特的地质背景和成矿特征而具有重要的研究意义。
Secondly , this paper reviews the effects of bank m & a , which include both positive and negative ones . the positive effects mainly include appreciation effect and diversion effect . the former is reflected on scale economy and scope economy , while the latter is embodied on divers 接着对银行业并购的效应进行了分析，指出银行业并购既有正面效应，也有负面效应，正面效应主要包括增值效应和转移效应，而增值效应又表现在规模经济和范围经济效益上，转移效应表现为资本市场价值转移和税收转移；负面效应主要表现在：过分垄断可能损害消费者的利益，超大规模带来的经营风险，金融监管难度加大以及大幅度裁员问题。
Using the research methods of literature and material , this essay analyses the challenges and countermeasures of the development of the olympic games faced from 6 aspects , such as the charter of independence , the commercial nature etc , and provides some references for development of the olympic games healthily and all the more 摘要通过文献调研，从奥运会的独立性、商业性、职业性、超大规模、兴奋剂的滥用、三大支柱间的矛盾等6个方面分析了奥运会面临的挑战和一些对策，为奥运会更加健康发展提供参考。
The fourth part is chinaneth , grid in our country has been studied preparatorily from both software and hardware and will being continuouslly developed : an is an calculation environmental designed in high performance , the another is vega grid . along with the fast development of application demand in high performance , a single computer with high performance can not perform solution of some super and large - scale application problem . this need combine various calculations resources of isomerization in distributed geography , through the super - speed network links , to solve large scale application problem . that is metacomputing 第四部分是中国网格，我国的网格从硬件和软件两方面进行了初步探讨并将不断发展：一个是高性能计算环境的设计，另一个是织女星网格。随着高性能应用需求的迅猛发展，单台高性能计算机已经不能胜任一些超大规模应用问题的解决。这就需要将地理上分布、系统异构的多种计算资源通过高速网络连接起来，共同解决大型应用问题，即广域
