问题描述：
[单选]
The temperature difference between the inlet and outlet temperature of the lube oil cooler in the lubricating system for the diesel engine is generally between（）．
A．8-10℃
B．10-12℃
C．10-15℃
D．10-20℃
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答案解析：无
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上一篇：As to the low speed diesel engine， if you want to change the coolant flow for a certain cylinder， you can regulate（）．
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