Objective: to study the angiotensin I converting enzyme (ACE) gene frequencies distribution on normal Chinese of Han nationality in Nantong area.
目的：研究南通地区健康汉族人血管紧张素转换酶(ace)基因频率分布。
The distribution and frequencies of drought in different degree were determined.
确定了不同程度的干旱在区域上的分布特征及其发生频率。
Objective:To understand the distribution of gene Frequencies of ear lobes of the Dong nationality.
目的：了解贵州侗族人群耳垂基因频率的分布特征。
Multiple tuned mass dampers (MTMD) consists of many tuned mass dampers with uniform distribution of natural frequencies.
多重调谐质量阻尼器(MTMD)是由许多频率成线性分布的调谐质量阻尼器组成。
The higher accuracy of measuring the Doppler frequencies, the less error of the aperture distribution.
多普勒频率的测频精度愈高，反演口径分布的误差愈小。
Multiple tuned mass dampers (MTMD) consist of many tuned mass dampers with a uniform distribution of natural frequencies.
多重调谐质量阻尼器(MTMD)是由许多频率成线性分布的调谐质量阻尼器组成。
There may be zones with different frequencies of the microniches, leading to a zonation in distribution of the species or to trends in species frequencies.
还可能存在着微生境频率不同的带，导致了该数种分布的成带现象，或导致了该树种在频率上的各种趋势。
The frequencies are broadly similar across different types of crises, with a significant share of distribution falling between 10 and 20 years.
如图所示，三类危机的频数分布状况大体相近，大多数时间间隔处于10-20年之间。
The distribution frequencies of chromosome 17 aneusomy in agreed and disagreed cases of two methods were 38%(42/110) and 53%(10/19), respectively.
在两种方法检测结果一致和不一致的标本中，出现17号染色体异倍体的比例分别为38%（42/110）和53%（10/19）。
The distribution frequencies of chromosome 17 aneusomy in agreed and disagreed cases of two methods were 38%(42/110) and 53%(10/19), respectively.
在两种方法检测结果一致和不一致的标本中，出现17号染色体异倍体的比例分别为38%（42/110）和53%（10/19）。
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