上层装饰有一排双列圆柱，顶部有一根柱顶。
The upper level is decorated with a double row of columns crowned by an entablature.
在这种情况下，我假设该圆柱是以柱轴跟地面平行的方式下落的(这样才能使人背部着地)。
In this case I will assume the cylinder is falling with the axis of the cylinder parallel to the ground (so the person would land on the back).
自调心球轴承的基本设计带有一圆柱孔，或者在某些尺寸范围内带一圆锥孔（圆锥1：12）。
The basic design self-aligning ball bearing is available with a cylindrical bore or, in certain size ranges, with a tapered bore (taper 1:12).
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