“防护帽”的概念、定义、翻译、参考文献-科学参考

单词	防护帽
释义	防护帽 crash helmet hard hat
随便看	beam optics beam-optics arrangement beam orifice beam pad beam path beam pattern beam pencil beam pentode beam-plasma amplifier beam-plasma instability beam-plasma interaction beam power beam power amplifier beam power tetrode beam-power tube beam power tube beam power valve beam practice beam profile beam pulse rate beam pump beam pumping unit beam ratio beam reactor beam rear suspension

科学参考收录了1248194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。