80余年 meaning in Chinese

the longest life expectancy of caged birds : sunflower crested parrot years

Although there are 80 years between the two new libraries movements from 20th century to 21st century , they have common spiritual flag , same goal orientation , moreover , the sponsors and participation body of the movements are the experts and scholars in this field without the involvement of government
摘要20世纪至21世纪的两次新图书馆运动，虽相隔80余年，却有着共同的精神旗帜，相同的目标取向，而且运动的发起与参与主体均系学界的专家、学者，没有政府的介入。