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...amount of currency in circulation 币发行量,货币流通量...amount of an currency in circulation 货币发行量,货币流通量...circulation n.流通,循环,发行量环流(货...circulation water 循环水...circulation oven 循环炉;循环热气炉...effective circulation 通货的实际流动额...water circulation 冷水环流...amount of paper money in circulation 纸币发行量,纸币流通量...coolant circulation unit 冷却液循环装置...note circulation 流通中的钞票总额...
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