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New situation of Chinese desertification demands transformat ion of the Three-North Forest Shelterbelt Program , which should solve the conf li ctions firstly .

新形势下的荒漠化防治要求三北防护林体系工程必须发生相应的转型，这种转型应以解决三大矛盾冲突入手。

HHT method is made up of Empirical Mode Decomposition ( EMD for short ) and hilbert transformat , its core part is EMD .

HHT方法由经验模态分解EMD和Hilbert变换两部分组成，其核心部分是EMD。

Investors gradually pay more attention to the influence of informatization , therefore the value of evaluate the enterprise informatization strategic implementing performance is apparent.This paper mainly studies the engineering design Institute informatization strategic implementing performance evaluation , due to the current engineering design Institutes are in transition , the design institutes explore how to successfully transform into engineering company , improving the informationization level and management mode , which have an important role in promoting engineering design Institute successfully transformat into the engineering company .

本文主要研究对象为我国工程设计院信息化战略实施绩效评价。由于目前我国工程设计院正处于转型期，各设计院纷纷探索如何成功向工程公司转型，提高设计院信息化水平、改进设计院的管理模式，对成功地向工程公司转型有着重要的促进作用。

After that using the ETL tool to clean and transformat the source datas which have quality problems , such as errors and inconsistencies data , finally loading data into the data warehouse . 3 .

然后通过ETL工具对源数据中的存在的错误的、不一致等有质量问题的数据进行清洗转换，最后将数据加载到目标数据仓库中。

In addition to the spring , the number of soil microbial in mixed fir-pine forest is more than in pure pine forest . ( 3 ) The soil enzyme and the correlation analysis : In addition to the polyphenol oxidase , between the other four kinds of enzymes ( urease , cellulose enzyme , catalase , invertase ) have a significant correlation , and have the positive correlation , it shows that they are coordinated development , and they work in concert to make soil nutrient elements transformat nutrition elements plant can use .

土壤酶及相关性分析除多酚氧化酶外，其余四种酶类（脲酶、纤维素酶、过氧化氢酶、蔗糖酶）之间均存在极显著的相关性，且是正相关，说明它们是协同发展的，共同作用使土壤营养元素转化及植物利用营养元素。