Spherical gas storage tanks are large pressure vessels made of high strength steel and exposed to daily pressure cycle.
球形煤气贮罐是由高强钢制成的且每日都要承受压力循环的容器。
Closed cycle proportion spherical valve pneumatic actuator system is analyzed, and its complete mathematical model is established.
对小型闭环比例气动舵机进行了分析，建立了完整的闭环比例气动舵机数学模型。
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