“黑火药”的概念、定义、翻译、参考文献-科学参考

单词	黑火药
释义	黑火药 Encyclopedia 工学火药释 black powder黑火药由硝酸钾、硫黄、木炭混合而成的异质火药。因燃烧后产生大量烟雾，又称有烟火药，简称黑药。
随便看	sound particle velocity Sound Pattern Theory sound pick-up devices sound power sound power, acoustic power sound power density sound power level sound power level' sound power meter sound premix Sound Press Ethics sound pressure sound pressure, acoustic pressure sound pressure level sound pressure meter sound pressure sensor sound probe soundproof soundproof for door and windows Sound-Proofing Felts and Blankets sound proof material sound propagation coefficient sound propagation in buildings sound pulse sound quality

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。