偏心压把（3）通过销子（4）铆接在阀壳（5）上。
The eccentric press handle (3) is riveted and connected to the valve casing (5) through a pin (4).
通过局部改进设计和优化，使阀壳强度符合设计要求。
With the design optimization of the valve structure, the valve strength is improved and satisfied.
试验得到的主汽阀阀壳应力值将为计算和结构改型提供一定依据。
The measured thermal stress values will provide the theoretical base for calculation and modification of the structure.
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