Remember, we've talked about these two arcs out here, the northern and southern arcs.
请记住，我们在这里谈论的是这两个弧，南北两个弧形地带。
At that time the cast ingot shape is a saddle, two arcs, the middle waist, and the gold and silver collar is very similar in shape.
当时所铸元宝形呈马鞍，两端圆弧，中间束腰，在形制上与南宋和金的银铤十分相近。
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。
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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