... variable-pressure drop 可变压降 variable pressure operation 滑压运行，变压运行 variable pressure wind tunnel 变压式风洞 ...
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steam turbine variable pressure operation 汽轮机变压运行
variable-pressure operation 滑压运行
variable pressure operation boiler 变压运行锅炉
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When the regulation is performed by variable flow rate, there exist two operation regulation modes with fixed zero pressure difference and variable zero pressure difference.
采用变流量调节时，存在定零压差点和变零压差点两种运行调节方式。
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