“cross-country skiing routes”的概念、定义、翻译、参考文献-科学参考

单词	cross-country skiing routes
释义	cross-country skiing routes Encyclopedia 工学〔雪上运动场地与设施〕释 cross-country skiing routes越野滑雪场地供专业运动员和大众在野外脚蹬滑雪板、手撑滑雪杖进行滑行的雪上体育运动功能区域。常为地形多变的森林、山丘、雪原地带。
随便看	positive pressure sealing positive propaganda positive proposition positive psychology positive psychotherapy positive punishment positive quadratic differential positive quadratic form positive quantity positive ray function positive real axis positive real control positive real function positive real number positive real part positive real system positive recurrent point positive recurrent state positive reinforcement positive relation positive result positive root positive root system positive rotation positive school of criminology

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。