“石器”的概念、定义、翻译、参考文献-科学参考

单词	石器
释义	石器 Encyclopedia 理学第四纪古生态释 stone tool;stone artefact石器人类以岩石为原料制作并使用的产品。历史学遗物释 stone tool石器以石头制作的生产工具、武器、礼乐仪仗器、器皿和艺术品等。其中的石质工具是人类最初主要的生产工具。
随便看	excitation system of hydro-generator excitation system protection excitation system voltage response ratio excitation system with AC exciter and rotary silicon rectifier excitation system with AC exciter and stationary rectifier excitation system with DC exciter excitation temperature excitation wavelength excitatory neuron excitatory postsynaptic potential excitatory postsynaptic potential, EPSP excitatory synapse excitatory transmitter excited excited atom excited Brillouin scattering excited cavity excited complex excited configuration excited determinant excited dimer excited electron excited level excited molecule excited nebula

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。