In engines with system, the lubricating oil can be added to the engine through the filling hole in the crankcase cover, by using a hand oil can, or through the separator pipe（）<br>A:lubricating oil<br>B:dry sump<br>C:circulated tank<br>D:wet sump

In engines with system, the lubricating oil can be added to the engine through the filling hole in the crankcase cover, by using a hand oil can, or through the separator pipe（）
A:lubricating oil
B:dry sump
C:circulated tank
D:wet sump

出自：海船船员证

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