在场地的圆弧中心设置了一个楼梯供上下两块场地之间的流通。
A staircase at the center of the arc provides circulation between the upper and lower levels.
对圆弧型指尖密封构型特征进行了分析，确定了型线圆弧半径与圆弧中心圆半径的关系及取值范围；
The geometric feature of the arc finger seal is analysed. The relationship between the finger stick arc radius and the stick arc center circle radii and their value scope are determined too.
计算了圆弧圆柱蜗杆传动在不同的蜗杆转角下的中心膜厚和最小膜厚。
Minimal film thickness and central film thickness of arc cylindrical worm drive were calculated under different rotation Angle.
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