catalyst circulation 催化剂装料...active circulation 流通额,流通中的货币...natural circulation boiler 自然循环锅炉...catalyst circulation rate 催化剂循环速度...velocity of circulation (货币)周转速度,流通速度...natural-circulation evaporator 自然循环蒸发器...air circulation 空气环流...circulation lubrication system 循环润滑系统...vertical type through-circulation dryer 立式热风干燥机;立式连续-环流...withdrawal from circulation 退出流通...currency in circulation 流通中的货币,流通货币...circulation valve 循环阀...amount of an currency in circulation 货币发行量,货币流通量...amount of currency in circulation 币发行量,货币流通量...circulation n.流通,循环,发行量环流(货...circulation water 循环水...effective circulation 通货的实际流动额...water circulation 冷水环流...coolant circulation unit 冷却液循环装置...amount of paper money in circulation 纸币发行量,纸币流通量...clean circulation 干净循环,馏出油循环...
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