Pertinent intervention and prevention measures should be taken according to different population features.
应根据不同群体的特点采取有针对性的干预及预防措施。
According to different economy conditions and population features in different areas, single or combined application of these several methods is of important significance.
根据不同地区的经济条件和人群特征，这些筛查方式单独或联合使用对宫颈癌及癌前病变的检出均具有很大的临床意义。
Influence factors of malaria epidemic were investigated, including population features, geographical distribution, epidemic focus and intensity, and the species of Anopheles.
调查影响疟疾流行的人群及地理分布特征，暴发点分布、流行程度等社会、经济和自然因素，以及媒介按蚊的种群和密度。
种群特征；
种群特征；
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