“U-value”的概念、定义、翻译、参考文献-科学参考

单词	U-value
释义	U-value [`yü ´väl·yü] ^ENGINEERING A measure of heat transmission through a building part or a given thickness of insulating material, expressed as the number of British thermal units that will flow in 1 hour through 1 square foot of the structure or material from air to air with a temperature differential of 1°F.
随便看	power component power control rod power control valve power cord power curve power cylinder power dam power density power-density spectrum power detection power detector power diode power distribution unit power divider power down power drill power-driven power efficiency power equation power excursion power factor power-factor controller power-factor meter power-factor regulator power flow

科学参考收录了103327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。