One parkway and three expressways meet here, and close to 300,000 vehicles a day are forced to reduce speed while navigating a network of tightly curved ramps.
一条景观道路(parkway)和三条快速路在此交汇，近30万辆机动车每天被迫在急转的弯道(tightly curved ramps)路网中减速慢行。
One parkway and three expressways meet here, andclose to 300, 000 vehicles a day are forced to reduce speed while navigating anetwork of tightly curved ramps.
一条景观道路（parkway）和三条快速路在此交汇，近30万辆机动车每天被迫在急转的弯道（tightly curved ramps）路网中减速慢行。
Secondly, analysed the approach model, described circular arc approximation method, approaching blade curved surface with this method and realized raise of the approach speed.
其次，分析了逼近模型，推导了单圆弧逼近方法，用这一方法来逼近叶片曲面，提高了逼近速度。
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