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精液常规分析在男性不孕症的诊断、治疗和科研中是一项基本而重要的检查，对精子密度、精子的活力、精子活率的综合分析是了解和评估男性生育能力的重要依据。

Semen routine analysis is a basic and important examination in the diagnosis, treatment and scientific research of male infertility. The comprehensive analysis of sperm density, sperm vitality and sperm viability is an important basis for understanding and evaluating male fertility.