问题描述：
[单选]
Diesel engine jacket water is used in the distillation process as the（）．
A．coolant for the distillate
B．coolant for the brine cooler
C．means of heating the feedwater
D．primary means of producing a vacuum within the distiller
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答案解析：无
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上一篇：When the prime movers of two paralleled generators are equipped with mechanical- hydraulic governors， and are operating within their designed range， the unit with the least amount of speed droop will（）．
下一篇：If the temperature drops low enough， oil will not flow，（）just tell us the temperature．
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