In a way the scrotum acts like a thermostat, trying to provide an even temperature for the continuous production of sperm which is taking place inside the testicles. 从某种程度上看，阴囊像一个自动调温器一样发挥著作用，它试图在睾丸内为精子的持续产生调节出一个恰好的温度。
The stroke and frequency of shearing can be controlled, the machine has the function of single shearing and sutomatic continuous shearing. 具有无级调节行程的功能，上下刀片刃口间隙量用手柄调节，刀片间隙均匀快速易调。
