本文共分为五个部分，主要运用了理论分析和比较分析方法。
This paper is divided into five parts, using theoretical analysis and comparative analysis method.
应用比较分析方法，对免耕整秸秆半覆盖技术进行了技术经济效果评价。
Technical economic evaluation on no-tillage with stalks mulching was made with comparative analysis method in this paper.
对于管道煤气泄漏事故可采用定量的比较分析方法说明扩散模式和伤害模式的不定性问题。
The uncertainties of the diffuse models and the injury models can be used by quantitative compared method for the leakage accidents of the pipeline gas.
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