“security check of large-scale events”的概念、定义、翻译、参考文献-科学参考

单词	security check of large-scale events
释义	security check of large-scale events Encyclopedia 工学安全检查的组织与实施释 security check of large-scale events大型活动安检在大型体育比赛、文艺表演和群众集会等中，为了确保参加人员（国家领导人、贵宾、记者、文体表演人员、运动员、裁判员、工作人员和观众等）的安全和活动的顺利进行，对场地、人身和携带物品进行的安全检查。
随便看	second cementing interface second characteristic polynomial second class of ordinal numbers second comparison test second complementary law second component second conjugate space second contact second control second cosine formula second cosine theorem second cosmic velocity second countability axiom second countable space second countable topological space second Cousin problem Second creation second critical magnetic field second cultivated machinery second curvature second demographic transition second derivative second derivative test second derivative test discriminant second development

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。