年龄鉴定 meaning in Chinese
age assessment
determination of age
estimation of age
Examples
- Evidence from isotopic dating suggests that the greenstone belts vary considerably in age .
来自同位素年龄鉴定的证据指出，绿岩带在年龄上彼此变化相当大。 - Skeletochronology has been widely and successfully used to age temperate amphibians , enabling geographic comparisons of longevity and the age at maturity
采用金顶齿突蟾（ 10 %福尔马林固定）为材料，对两栖类年龄鉴定方法进行了摸索。 - Scales were used for age determination and a modified seine was used for collecting samples to study diversity of fish community . main results were as follows . 1
鱼类年龄结构的研究以鳞片为年龄鉴定材料，鱼类群落多样性的研究以围网为采样工具，主要结果如下： 1 - The interpretability of four kinds of ageing materials are as follows : sectioned dorsal fin spine > sectioned lapillus > scale > vertebra . sectioned dorsal fin spine is the best material in ageing of the fish less than eight years . as for the fish elder than eight years sectioned lapillus is the reliable ageing material that had more annulus readings than scale , dorsal fine spine and vertebra
对8龄以下个体，用背鳍条磨片鉴定年龄效果最佳；对8龄以上个体，臀鳞、背鳍条磨片和脊椎骨上的年轮计数明显低于微耳石磨片，微耳石磨片上的年轮计数最高，是高龄青海湖裸鲤可靠的年龄鉴定材料。 - Using the method of principal component analysis , the principal component is extracted from twelve growth grade of foot hones , and the regression of the principal component is followed , then the regression of partitoning age group is conducted , finally table of the bone - age coefficient for determination of person ' s age is obtained
摘要运用主成分分析法提取了十二种足骨发育等级的主分量，接着进行主分量回归，然后再进行分年龄段回归，可得用于年龄鉴定的骨龄系数表。