分析了陕北1960—2000年沙尘暴的年际和年代变化情况。
This paper analyzed the interannual and decadal changes of sandstorm from 1960 to 2000 in north Shannxi.
目的探讨化工联合企业职工死亡疾病谱及年代变化趋势，提供化工生产职工卫生保健的科学依据。
Objective To explore the mortality nosology and years changing trend of the workers in the chemical industry united corporation.
尽管不同育种年代玉米自交系和杂交种在同工酶谱带上差异明显，但未表现出随育种年代变化的趋势。
The difference of band pattern in maize inbred lines or hybrids is obvious, but it don't display regularity changes with maize breeding eras.
目的了解儿科疾病谱及死亡原因的年代变化趋势，为做好儿童疾病医疗和预防保健工作提供科学依据，以进一步有针对性地提高儿科医疗质量，降低医院内小儿病死率。
Objective To describe trends of the spectrum of disease and the cause of death with time, to provide a scientific basis for medical treatment and health service in children.
到20世纪60年代形势已发生了根本的变化。
这些雕刻的某些特征让人得出它们年代久远的结论——这些设计完成之后显然有地质变化发生。
Certain features of these engravings lead to the conclusion that they are of great age—geological changes had clearly happened after the designs had been made.
19世纪60年代至70年代英国企业在伊朗的经历是英国企业在整个亚洲重要性不断变化的一个例子。
The experience of British business in Iran between the 1860's and the 1970's is one example of the changing importance of British enterprise in Asia as a whole.
最大的变化是，自20世纪80年代香槟的生产和销售达到创纪录水平的大繁荣时期后，销量一直在下降。
The biggest change has been the decrease in sales since the great boom years in 1980s when champagne production and sales reached record levels.
在20世纪60年代和70年代，欧洲大学的管理安排发生了明显的变化，赋予了初级教员和一定量的学生权力。
In the 1960s and 1970s, European universities saw marked changes in their governance arrangements, with empowerment of junior faculty and to some degree of students as well.
仪器上记录的年代不够久远，因而无法可靠地提供一个世纪以前全球气候变化的测量值。
Instrumental records do not go back far enough to provide us with reliable measurements of global climatic variability on timescales longer than a century.
卡普萨利斯说：“20世纪70年代以来，档案管理流程已经发生了翻天覆地的变化，我们会把价值很高的文档存放在一个保险箱中，甚至连我都无法打开。”
"Archiving practices have changed greatly since the 1970s," says Kapsalis, "and we keep our high value documents in a safe that I don't even have access to."
但是，我也记得迅速变化的年代带来的不仅是进步和兴奋，它同样能带来痛苦和困惑，甚至是破坏。
But then I also remember that times of rapid change can bring pain and confusion, even destruction, as well as progress and excitement.
很显然，当今软件和系统交付的世界不再是1981年代状况，它正以惊人的速度在不断变化着。
Obviously, the world of software and systems delivery isn't what it was in 1981, and it continues to change at an astonishing pace.
尽管沟口健二贯穿其职业生涯始终，一直坚持忠于这种风格的基本元素，但其美学在战后年代有所变化。
Although Mizoguchi remained faithful to the basic elements of this style throughout his career, his aesthetic was modified in the postwar era.
在80年代，我们在变化的业务环境中冲浪。
80年代早期以来确诊处于第ii I期的妇女5年生存率显示了小而稳定的增长，而且处于第iv期的病人的预后也已经有了微小的变化。
Five-year survival for women with stage III disease has shown a small but consistent improvement since the early 1980s, and there has been very little change in prognosis for stage iv patients.
上世纪90年代以来，东南欧地区形势发生了很大变化。
Since the 1990s, great changes have taken place in Southeast Europe.
火鸡大小的变化始于二十世纪三十年代。
19世纪20年代末，情况起了变化，两家纽约报纸，《商业日报》（the Journal of Commerce）与《询问快报》（theCourier and Enquirer）开始竞相争取商业读者。
Things began to change in the late 1820s as two New York papers, the Journal of Commerce and the Courier and Enquirer, began to compete for business readers.
这种类型的社会变化，使得对比今天与1970年代的家庭收入波动变得更加困难。
These type of social shifts make it harder to compare today's typical family income volatility with that of the 1970s.
太阳黑子活动的年代际和长期变化对升温和降温云层模式的影响现在已被确认为一个重要因素。
Decadal and longer changes in sunspot activity impacting warming and cooling cloud cover patterns are now being recognized as an important factor.
90年代是公路和反全球化；而这个年代，00后，是关于气候变化。
the Nineties was roads and anti-globalisation; and the Noughties, this decade, is about climate change.
这意味着变化出现在2010年的5月中旬的时候，就发生在6月初在20世纪60年代。
This means that the changes seen in mid-May in 2010 would have happened in early June in the 1960s.
从臭氧层的实际变化中除去正常情况下臭氧层的变化（对照），这个研究团队发现“自20世纪90年代以来臭氧层空洞缩小趋势”有一个系统性的机制。
Subtracting their estimate of the natural changes in ozone from actual changes, the group finds “a clear upward trend since the late 1990s” in the hole's ozone that represents “a systematic rebound.”
调查同时也关注到人们自上个世纪六十年代以来，对于同性恋结婚、堕胎、家庭重要性和其它社会准则变化的看法态度。
The study also looked at people’s attitudes towards gay marriage, adoption, the importance of family and other changes in societal norms since the 1960s.
调查同时也关注到人们自上个世纪六十年代以来，对于同性恋结婚、堕胎、家庭重要性和其它社会准则变化的看法态度。
The study also looked at people’s attitudes towards gay marriage, adoption, the importance of family and other changes in societal norms since the 1960s.
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