人口统计学

During the second half of the 20th century, the global population explosion was the big demographic bogey.

20世纪下半页，全球人口在爆炸是人口统计学推断出来的最大恶梦。

This quiet demographic counter-revolution is a dramatic upsurge in intermarriage.

这种人口统计学意义上的逆向流动便是异族婚姻的大幅增加。

Methods The demographic data and criminological characteristics of 324 cases were analyzed using self-made questionnaire.

方法采用自制调查表对324例司法精神病鉴定资料的人口统计学特征和犯罪学特征进行分析。

The authors report a relation between the demographics and presentation of cutaneous melanoma and age.

作者报道了皮肤黑素瘤的人口统计学和先露与年龄之间的关系。

In demographic terms, it is just a moment or two.

在人口统计学的尺度上，这只是片刻即逝的事情。

There is a demographic shift in industrialized countries, he said.

在工业化国家发生着人口统计学意义上的变化，他说。

These skeptics fail to look at the changing demographics of China's consumers.

这些怀疑者忽略了中国消费者人口统计学上的变化。

However, subjects in our study were all satisfied with their tourism decision, the demographical characteristic, such as gender, age, education background, occupation, and the average incomes, dori t affect the degree of tourism decision satisfactory.

被试的旅游决策满意感，不存在人口统计学特征的差异，具有不同性别、年龄、文化水平、职业、家庭人均月收入等人口统计学特征的被试，都对自己的旅游决策感到比较满意。

Others are immigrants from European and African nations who are classified by the United States census as African American demographically instead of socially .

其他移民来自欧洲和非洲国家的人归类，由美国人口普查为非裔美国人人口统计学而不是社会。

Note that all these demographic projections are no more than extrapolations of recent trends, together with some assumptions about the role of economic advancement and family planning in stemming the rate of population growth.

注意所有的这些人口统计学的发射是没有于最近趋势的插补法，连同一些假定一起有关经济进步和在阻止人口生长的比率方面计划的家庭角色。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。