The vessel may operate with an unmanned engine room, i.e. an alarm can be routed to the engineer on watch, the bridge and the chief engineer.
Since 1920, it is the hull classification for a Destroyer.
It is a class notation pertaining to vessels with instrumentation and automation installed to allow for unattended machinery space.E0= Instrumentation and automation installed to allow for unattended machinery space.http://www.4coffshore.com/windfarms/an-introduction-to-vessel-classes-nid183.html
Probably "spaces". As in skip spaces.
Machinery means different kinds of equipment which can replace manhand to work.
On Italian ships = ats a my boat
Because they were ships? Do you mean longships? They were long and thin.
disadvantages of analytico-synthetic classification
RP Means Rating Pending for age classification.
maru means round in japanese ships
it depends on what you mean by the two spaces, if you mean you have two question marks than it could be a number of characters, if you mean the spaces with nothing in them then its just a spacing thing, nothing goes there
High machinery
it is a part of scientific classification