“经济比摩阻”的概念、定义、翻译、参考文献-科学参考

单词	经济比摩阻
释义	经济比摩阻 Encyclopedia 工学长距离输送热水管网释 economic specific frictional head loss经济比摩阻用技术经济分析的方法，根据供热系统在规定的补偿年限内年总计算费用最小的原则确定的比摩阻。
随便看	conical surface of rotation conical wedge conic constant conic double point conic equidistant projection conic function conic in affine geometry conicity conico-cylindric surface conic of centers conic of elliptic type conic of hyperbolic type conic of parabolic type conicograph conicoid conic operator conic optimization conic point conic polar conic programming conic projection conic representation Conics conics conic section

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。