Based on calving records(1984-1995)of Holstein-Friesian maintained at one of dairy cattle places in XiNing, used the method of statistieal analysis sex of calf of different breeding age ,parity and breeding month.
根据西宁某奶牛场1984-1995年荷斯坦奶牛的配种产犊记录,按不同配种年龄、胎次与配种月份所产犊的性别进行统计分析。
This article studies aspects concerning age controlling,senility retarding and disease dispelling both in the east and the west.
对东西方支配年龄、延缓衰老、祛病延年等养生方面的问题进行了探
A STUDY ON PROPER MATING AGE OF KREAL QUAIL
朝鲜龙城系鹌鹑适宜配种年龄的研究
It is therefore essential to know the age distribution in the population.
所以，了解在该种群中的年龄组配状况是很重要的。
To pass a certain sentence because the accused is very old or very young.
因被告年龄太大或太年轻的某种科刑。
Accuracy of Age Estimation in 14-year-old Females by Two Skeletal Age Standards
两种骨龄标准推断女性14岁年龄的准确度
Discrimination based on age, especially prejudice against the elderly.
年龄歧视对处于某种年龄的人们的歧视，尤其指对老年人的偏见
age-marital duration specific fertility rate
年龄婚龄龄别生育率
This colour does not seem to fall in with my age.
这种颜色似乎和我的年龄不相称。
This wig will be perfect for ladies your age.
这种假发对您这样年龄的女士很合适。
Volunteers are of all ages and work everywhere.
各种年龄层都有义工工作并遍及各处。
And there should be a proper ratio of cadres in these different age groups.
这几种年龄的干部也应该有个比例。
The age at which this bisexual potential is completely lost varies with the species.
两性潜能完全丧失的年龄，因畜种而异。
Age structure is a foundational base to study the population dynamics.
年龄结构是研究种群动态的重要基础。
Research on Population Age of Eothenomys melanogaster
黑腹绒鼠(Eothenomys melanogaster)种群年龄的研究
Numerical Approximate Scheme for Stochastic Age-dependent Population Equations
一类与年龄相关的种群系统的数值解
STUDY ON THE DIVISION OF AGE GROUP AND THE AGE COMPOSITION OF POPULATION OF STRIPED HAMSTER IN BEIJING AREA
北京地区黑线仓鼠年龄鉴定及种群年龄组成的研究
The first people immunlized with inactivated vaccine against HFRS was 30～39 age group and the next peoples were 40～49 age and 20～29 age group;
30～39岁年龄组，其次是40～49岁和20～29岁年龄组是首选接种人群；
Absolute dating involves assessing the actual age of a specimen by using some reliable measure to time.
另一种是绝对年龄，通过测量可靠的时间来确定样品的真实年龄。
Age, weight index, course of diabetes and blood sugar were matching.
两组患者年龄、重指数、尿病病程及血糖相匹配。