The result shows: the dimension disposal of the triangular groove used in inlet and outlet way should be unsymmetrical, and plate noises can be controlled well after using triangular groove.
结果表明：对吸、排油采用的三角槽结构尺寸布置应该是非对称形式的，并且采用了此三角槽结构后，配流噪声可以得到较好的控制。
Triangular structure of the outer conductive copper wheel points inside and outside two groove, the copper wire inside groove introduced, complete annealing.
三角结构的外层导电铜轮分内外两沟，铜线经内沟引入，完成退火。
Triangular structure of the outer conductive copper wheel points inside and outside two groove, the copper wire inside groove introduced, complete annealing.
三角结构的外层导电铜轮分内外两沟，铜线经内沟引入，完成退火。
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