v型槽
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v shaped groove
V形槽
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The sealing ring cross section is V-shaped, and inner groove between two side edges composed the V-shaped is formed by tangency of two arcs with different radiuses.
密封圈的横截面呈＂V＂字形，构成＂V＂字形的两个侧边条之间的内槽由两个半径不等的圆弧相切而成。
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