Cylinder lubrication oil for low speed main propulsion diesel engines is admitted to each cylinder during ().
英译汉:lubrication
The main function of the lubrication system in to enable () of a film of oil between the moving parts.
The most crucial time for any bearing with regards to lubrication is ()
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.
During repair,lubrication lines and orifices must be ().