“空中游览”的概念、定义、翻译、参考文献-科学参考

单词	空中游览
释义	空中游览 Encyclopedia 工学〔载人类通用航空活动〕释 aerial sightseeing空中游览使用民用航空器在以起降点为中心、半径40千米的空域内载运游客进行以观赏、游览为目的的飞行活动。
随便看	second order wave force second organic aerosol compounds second orthogonality relation second Pappus theorem second partial derivative second pendulum second-person virtual reality second plenary session of ninth central committee of CPC Second Plenary Session of Seventh CPC Central Committee second polar second polar body second power second power point second principal line second principal plane second problem of cousin second prolongation second quadrant second quantization second quantization method second quantization representation Second Repbulic of Venezuela Second Republic of Spain Second Revolution second ring isomorphism theorem

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。