“recreation”的概念、定义、翻译、参考文献-科学参考

单词	recreation
释义	recreation Encyclopedia 工学〔基本情况〕释 recreation游憩个人或团体于闲暇时间内，在离开居所一定范围内进行的以放松身心、恢复体力和精力、获得自由愉悦体验为目的的休闲活动。
随便看	completely continuous linear operator completely continuous mapping completely continuous operator completely controllable completely controllable object completely controllable system completely convex completely convex function completely convex set completely decomposable completely decomposable matrix completely decomposable module completely defined correspondence completely defined function completely distributive lattice completely enumerable class completely equivalent completely equivalent algorithm completely equivalent method completely ergodic automorphism completely faithful module completely filled shell completely harmonic space completely homologous mapping completely illiterate

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。