“出生性别比”的概念、定义、翻译、参考文献-科学参考

单词	出生性别比
释义	出生性别比 Encyclopedia 法学生育率释 sex ratio at birth出生性别比在特定的时间和空间范围内出生时的活产男婴数与活产女婴数之比。又称出生人口性别比、第一性别比。
随便看	doubly binary form doubly connected doubly connected domain doubly connected space doubly even number doubly even symbol doubly-fed asynchronous genertor doubly fed electric machine doubly heavy-flavored hadron doubly heavy flavor physics doubly infinite sequence doubly interval censored data doubly invariant doubly irreducible element doubly linked list doubly-magic nucleus doubly magic square doubly noncentral F-distribution doubly nonnegative matrix doubly ordered set doubly periodic function doubly plus operator doubly projective variety doubly resonant oscillator doubly ruled surface

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。