“袋剑虎”的概念、定义、翻译、参考文献-科学参考

单词	袋剑虎
释义	袋剑虎 Encyclopedia 理学哺乳纲（化石）释 thylacosmilids袋剑虎南美捕食者有袋类袋剑虎科动物的泛称，是一类已灭绝的动物。
随便看	operator range operator ray operator ring operator root operators'characteristic value-added telecommunication service operator scheme operator semi group operator semi-group operator semigroup operator semi-group of class C0 operator semi-group of class C_0 operator semigroup of class C0 operator set operator sine function operator space operator spectrum operator splitting operator splitting method operator-stable operator structure operator theorem operator-theoretic method operator theory operator topology operator transform

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。