“gunpowder”的概念、定义、翻译、参考文献-科学参考

单词	gunpowder
释义	gunpowder [`gǝn´pau̇d·ǝr] ^MATERIALS A black or brown explosive mixture of potassium nitrate, charcoal, and sulfur; originally, it was made in powder form, now generally in grains of various sizes.
随便看	time-mark generator time measurement time meridian time modulation time-motion study time-multiplexing time-of-day clock time of delivery time of flight time-of-flight mass spectrometer time-of-flight spectrometer time of origin time of receipt time of set time on target timeout time over target time phase time phasing time-projection chamber time-pulse distributor time quadrature time quantum time quenching timer

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。