问题描述：
[单选]
The oil quantity for bearing lubrication should be applied in such an amount as to be sufficient to carry away the（）caused by the friction at the bearings．
A．acids
B．additives
C．heat
D．gear
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答案解析：无
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上一篇：The operating diesel generators will have their exhaust temperatures， cooling water and lubricating oil temperatures and pressures（）in much the same way as for the main engine．
下一篇：The oil is drawn from a drain tank through（）， one of a pair of pumps， into one of fine filters．
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