本文详细介绍了穿刺输精管用平头导管针的制作过程，并简单阐述了其使用方法。
The article gives a detailed introduction of the process of marking flat tube needle for vas deferens puncture and a brief explanation of its application.
本文详细介绍了穿刺输精管用平头导管针的制作过程，并简单阐述了其使用方法。
The article gives a detailed introduction of the process of marking flat tube needle for vas deferens puncture and a brief explanation of its application.
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