Why is it important for fuel oil tanks not to be topped off at the inner bottom level when loading on a cold day?()
The sludge tank installed in the diesel engine room is used to collect()
Ⅰ.sludge from the fuel oil settling tanks ad centrifuge
Ⅱ.water that has been collected in the settling tank
为了保证船舶航行安全,首先要确定船舶的航向与位置。船舶定位方法按照参照目标可分为( )。
When centrifuging heavy fuel oil, an important factor to consider is the ()
(1) flow rate
(2) viscosity of the fuel oil
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