两个同向的圆曲线，应该设有足够的，长度的直线，不得让短线相连接，否则应

两个同向的圆曲线，应该设有足够的，长度的直线，不得让短线相连接，否则应该，为单曲线或者复曲线，或者利用回旋线来组成卵形，凸型，和复合型的曲线。

結果 (英文) 1:

Two circular curve in the same direction, should be equipped with adequate, the length of the line, may not be connected to short-term, you should, as a single curve or curve, or clothoid to form oval, convex, and compound curves.

結果 (英文) 2:

Two same direction circular curve, should be provided with sufficient straight length must not let short-connected, or should, as a single curve or compound curve, or the use of cyclotron lines to form oval, convex, and the compound curve.

結果 (英文) 3:

Two to the same circular curve, there should be enough, the length of the line, not short-term connected, otherwise should, as a single curve or a complex curve, or the use of clothoid to ovate, convex, and compound curve.