“危害性物质”的概念、定义、翻译、参考文献-科学参考

单词	危害性物质
释义	危害性物质 Encyclopedia 工学机械安全释 hazardous substance危害性物质有害健康的化学或生物介质。
随便看	closed hypersurface closed ideal closed image closed immersion closed injury of larynx closed integration formula closed intersection closed interval closed isotope system closed kernel closed lattice closed lattice ideal closed leveling line closed Lie subgroup closed line closed linear hull closed linear manifold closed linear operator closed linear span closed line segment closed long-axis orbit closed loop closed loop circulation closed loop continuity check closed loop control

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。