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bleeding check valve
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bleeding check valve
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bleeding check valve
抽汽逆止阀
布置在汽轮机回热抽汽管道上靠近汽机侧,防止汽轮机突然甩负荷时加热器内蒸汽倒流回汽轮机并使之超速的保护装置,同时也作为加热器管束破裂导致的汽轮机进水事故的第一道保护。又称气动止回阀。
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second derivative test
second derivative test discriminant
second development
second difference
second differential
second differential parameter
second differentiator
second distance
second dual
second dual module
second dual space
second economics adjustment of China
second eigenfunction
second electron emission
Second Emperor of Qin Dynasty
Second Empire of Brazil
second factor
second fall-line
second Fermat point
second field free region
second field-free region
second field free region (2nd FFR)
second field-free region (2nd FFR)
second filial generation
second five-year plan of China
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