“长寿水平”的概念、定义、翻译、参考文献-科学参考

单词	长寿水平
释义	长寿水平 Encyclopedia 医学老年流行病学释 longevity level长寿水平 80岁以上人口占60岁以上人口总数的百分比。
随便看	railway track railway track maintenance and renewal railway traction network railway traffic accident railway traffic capacity railway traffic control railway traffic hygiene quarantine railway traffic volume railway train traction calculation railway transmission network railway transportation railway transportation asset and resource railway transportation cost railway transportation development railway transportation plan railway transportation revenue railway transportation statistics railway transport capacity railway transport enterprise railway transporter for fairing railway transport freight tariff railway transport industry railway transport tariff railway transport vehicle for missile railway tribology

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。