Alternatively, the oil injection hole is the round or square oil injection hole which is arranged at the positions of the side wall or end surface of the motor shell corresponding to the bearing.

或为设在电机壳体侧壁或端面上对应于轴承部位的圆形或方形注油孔。

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Alternatively, the oil injection hole is the round or square oil injection hole which is arranged at the positions of the side wall or end surface of the motor shell corresponding to the bearing.

或为设在电机壳体侧壁或端面上对应于轴承部位的圆形或方形注油孔。

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