“the mental health of middle age”的概念、定义、翻译、参考文献-科学参考

单词	the mental health of middle age
释义	the mental health of middle age Encyclopedia 医学心理健康标准释 the mental health of middle age中年心理卫生 45～60岁年龄段人群的精神健康。
随便看	fractionation effect fractionation factor fraction bar fraction calculate method fraction collector fraction expression fraction field fraction in lowest terms fraction of critical speed for grinding mill fraction of integers fraction of soil heavy metal fraction stroke fractions连分式逼近 fraction unit fractographic analysis fractography fractometer fracton fractran fracture fracture aperture fracture assessment of nonmetallic structures fracture behavior of ceramics fracture control of steel pipe fracture criterion

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。