通常发生的是弹簧同阀杆和阀体腐蚀在一起，变得无法移动。
What usually happens is that the spring corrodes to the stem and valve body and becomes immovable.
摆锤W装在一根杆上，在轴a周围垂直移动，它由螺旋弹簧f所悬挂。
W is attached to a bar, movable vertically around an axis a and suspended by the helical spring F.
内置式浮动销杆又由硬体滑杆和软体滑杆组成，浮动销杆只能在空心的握柄、弯力弹簧和空心的竿身套管内移动。
The built-in float pin rod comprises a hard and a soft slide rod, and moves only in the hollow holding handle, the bending spring, and the hollow casing for the rod body.
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