“chemical safety signs”的概念、定义、翻译、参考文献-科学参考

单词	chemical safety signs
释义	chemical safety signs Encyclopedia 工学安全设施释 chemical safety signs化学品安全警示标志以文字和图形符号的组合表示化学品在工作场所所具危险性和安全注意事项的形式。
随便看	foamy urine focal focal adhesion focal area focal axis focal chord focal circle focal conic focal conic defect focal conic texture focal cubic focal curve focal developable surface focal distance focal distance, focal length focal ellipse focal extender focal hyperbola focal image focalization focalizer focal length focal length factor of photographic lens focal length measurement of optical part and optical system focal line

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。