英德
有道
百度
谷歌
图片
维基
百科
开口系统
open loop system
- 怎样分析开口系统具有重要的理论意义和实用价值。
Analysing open systems are of great important both in theory and in practice. - 介绍了质量流及其有关的基本概念，这对正确理解和应用外界分析法来分析开口系统是有帮助的。
The mass -flow and its related concepts are introduced as well. The paper might be helpful for understanding and applying the SAM to analyse open system. - 探讨焓（火用）（开口系统）和内能（火用）（闭口系统）恰当的数学表达式和双图显示法。
Proper mathematical expressions, as well as the dual-representation, of enthalpy-exergy (open system)and of internal energy-exergy (closed system) are also studied.
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中国词汇量第二的英语词典
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