在内部作成圆形凸肩以代替锐缘孔板状的侧面。
It has rounded shoulders inside instead of the sharp orifice - like edge.
在内部作成圆形凸肩以代替锐缘孔板状的侧面。
It has rounded shoulders inside instead of the sharp orifice-like edge.
此外,突出的凸肩(17)用于支撑一绝缘子装置(15)。
Furthermore, the projecting shoulder (17) is used for supporting an insulator arrangement (15).
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