Empirical, quantum mechanical and artificial neural network methods are three usual methods in recent years that were used to predict sensitivity of different c
明儿个关井,这是最后一碴炮.放炮员老靳像往常一样,装好药,联好炮,等待瓦检员检查,只要瓦斯不超限,就可以放炮.这是行规,佛爷眼珠——动不得.他是“老安全”,岂能做违章的事.
A new technology for hessing the dye polluted water and dyecollection was developed. It is based on the enhanced evaporation by using solar, wind, and air tempe
The treatment of coking residual ammonia water has been a bigdifficult problem at home and abroad, and there is no breakthrough research achievement in the past
Information ecology is a new research area of mod ecology.Here describes spatial distribution analysis methods of four sorts of climatic variables, i.e. tempera
自1972年中国与日本恢复外交关系以来，中日进出口贸易总额不断突破新高。在中日进出口贸易规模快速扩大的情况下，中日航线集装箱运输市场却于2006年出现了严重的“负运价”现象
伴随着外贸体制的改革和诸如“一带一路”等经贸促进政策的出台实施，民营外贸服务提供商逐渐兴起，其服务模式经历了从初始的代理报关报检，到企业内部供应链整合以提供整套的外贸
Ⅰ.未涂机械浆纸(UM):据CEPIPRINT年报显示,经历了2005年的困难时期后,2006年未涂机械浆纸市场有所好转。上年交货量攀上新高,总量约310万t。到西欧的交货量略有下降(–1.8%)