Semen (sperm) under the microscope. [Сперма под микроскопом]
We can see human sperm under the microscope. A lot of spermatozoons are flowing. After several hours they are die, some of cells are sticking tougether.
Человеческая сперма под микроскопом. Видно большое количество активных сперматозоидов. С течением времени их активность снижается и они погибают (некоторые из них слипаются вместе.
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