(Butter fly valve)具有可旋转的圆盘形或双平板形的活门， 用以截断水流的阀门，其转动轴线与水流方向垂直。
水利工程专业词汇英语翻译V-1-SCIdict学术... ... 放气阀 Valve， blow off 蝴蝶阀 Valve， butterfly 边阀 Valve， by-pass ...
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因为阀瓣就像蝴蝶，因此也叫蝴蝶阀。
Because the valve is like a butterfly, also called the butterfly valve.
该系统已正式投入使用，运行情况良好，证明该系统的设计满足了蝴蝶阀的控制要求，确保了安全生产。
The operation result proves that this system can meet the control request of butterfly's valve, and can guarantee the safety.
介绍了DN1400蝴蝶阀控制系统的操作程序，并详细阐述了其液压控制系统和电气控制系统的设计。
The operation programme of DN1400 butterfly's valve control system was introduced, and the designs of its hydraulic pressure control system and electric control system were explained.
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