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此种梳子的基本原理是,内空的梳毛连通梳柄,梳柄内空出一定的范围可供加入洗发液。梳柄内空处有活塞可以在使用时通过对洗发液的挤压使其充满梳毛内空
The basic principle of this kind of comb is that the inner comb is connected to the outer comb, and a certain range of combs is provided for adding the shampoo. There is a piston inside the comb handle can be used in the squeeze through the shampoo to make it full of space within the carding