It recognizes the seal's face based on information related to the eyes and nose shape, as it would a human.
它根据与眼睛和鼻子形状相关的信息来识别海豹的面部,就像识别人类一样。
英语百科
Face seal
A face seal is a seal in which the sealing surfaces are normal to the axis of the seal. Face seals are typically used in static applications and are used to prevent leakage in the radial direction with respect to the axis of the seal. Face seals are often located in a groove or cavity on a flange.