A ceramic bearing is pre-loaded through a pre-loadedspring.
陶瓷轴承通过预紧弹簧进行预紧。
2
The spring return pneumatic actuators use an air supply to drive the valve stem in one direction and an internally loadedspring to return to the valve to its original position.
春季返回气动执行机构使用的空气供应，以推动一个方向阀杆和一个内部装载弹簧返回到原来的位置阀门。
3
The curling iron is shaped like a night stick, springloaded and they're commonly made from tourmaline, metal or titanium.