活动叶片上设有轴销，轴销上装有弹簧。
A shaft pin is arranged on the movable vanes, and a spring is arranged on the shaft pin.
建筑可以向爬满爬山虎的墙面开启，大门消失在层层叶片的覆盖下，它可以为一个又一个盛大的活动提供服务。
The building can be opened into blade walls, with its' disappearing 'gates it is able to serve one and the other, in case of grand events, both.
该锁芯机构由多个圆形叶片和多个圆形隔片相互间隔活动叠装在叶片套的内孔套筒中构成。
The locking mechanism is made up of an inner hole sleeve inside which multiple round leaf blades and round spacers are reciprocally spaced and kinetically sheathed in the blade cases.
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