According to important principle of environment's assessment cost, the assessment scopes of SLCA are simplification of the ones of LCA.
基于企业环境评价成本的重要性原则，SLCA的评价范围即生命周期评价的评价范围简化。
The working principle, control system structure of the lower roll moving device on a 3-high plate coiling machine, mathematical model simplification and analysis are introduced.
介绍了新设计的三辊卷板机的工作原理、下辊位置控制系统的组成、数模简化与分析等。
The working principle, control system structure of the lower roll moving device on a 3-high plate coiling machine, mathematical model simplification and analysis are introduced.
介绍了新设计的三辊卷板机的工作原理、下辊位置控制系统的组成、数模简化与分析等。
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