sperm counting

例句：

1. 1. The doctor ordered the patient to undergo sperm counting for fertility testing.
   医生要求患者进行精子计数以进行生育测试。
2. 2. Sperm counting is an important part of prenatal screening.
   精子计数是产前筛查的一个重要部分。
3. 3. During the sperm counting process, the technician carefully collected samples from the patient's semen.
   在精子计数过程中，技术人员从患者的精液中小心地收集样本。