The 202 soil samples were analyzed and diagnosed by using the systematic research method of soil nutrient condition .
应用“土壤养分状况系统研究法”对吉林省202个土壤样品化验分析和生物诊断。
Systematic research method was mainly used: Firstly, researches in the paper were based on ideas of SE. Secondly, structured process models of different design stage were established.
本文针对产品系统化设计若干关键理论问题开展研究，是对基于系统工程的产品综合设计理论与方法的继承性研究。
Systematic theory, a newly-rising study and research method, has been widely used in all sorts of human and practical research.
系统论作为一门新兴学科和研究方法，已被广泛运用于人类的多种研究和实践中。
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