Why to want to add \"cruise before ss\"

Why to want to add \"last minute discount cruises former name\" want to know before ss \"ss\" is what means this time would especially like to know about the name before ldquo; of&\" SS” What that means. I know ldquo; of&\" RMS” Is the royal last minute discount cruises, both have relationship? How to discern a ship is application &; ldquo SS” Or &; ldquo RMS” ? I\'ve seen some boats useful &; ldquo MS” &; ldquo MV” Wait, these what meaning be? I believe you have seen the sea number \", such as more careful can be observed Poseidon number stern mark is &; ldquo SOUTHAMPTON” , generally marked &; ldquo SOUTHAMPTON” Such as QE2, QM2 are &; ldquo RMS” Beginning, do Poseidon, general everyone called &; ldquo SS POSEIDON” And this is why? These questions has been bothering me, after a few months, I finally solve the problem, here also published his own view, the hope can give with me have same doubts some help. SS - Steamship steamboats MV - which Vessel internal-combustion Ship MS - which Ship internal-combustion Ship RMS (1970s before) - never E-mail Steamer Royal Mail steam Ship RMS (QM2 title) - never E-mail Ship Royal Mail ships also somebody thinks the RMS meaning is never Ship (for all E-mail RMS), E-mail, but never Steamship only I learned about the Steamer is normal never E-mail. In traditional last minute discount cruises\'s history, english-born steam last minute discount cruises might be given the RMS prefix, while steam ship itself is the abbreviation of can always use SS. And while no royal mail internal-combustion engine last minute discount cruises the title, only have technical prefix MV. This proof of the traditional RMS (never E-mail Steamer) applies only to steam ship. QM2 RMS (never E-mail Ship) is a special case, in fact, but using the Steamer and Ship in English initials just as just. Technical prefixes, for example: PS, SS, TS, MV, MS, etc. GuiShuXing prefixes, for example: the RMS, HMS, HMT, HMHS, USS etc. And the Paddle Steamer corresponding can be Steamer, Screw in the 19th century should compare see more, later Ming round the only propeller configuration, also needn\'t emphasize it. Seen &; ldquo TS Mauretania” Long time, didn\'t understand. Originally the T refers to the Turbine. Latin languages more convenient of all is the proprietary vocabulary theory can all acronyms. Of course the premise is to make sure that what it stands for, otherwise it will make people banana. Early civil ship S most be &; ldquo Steam ship & rdquo; The solution, warships S is Ship. Gas turbines: Gas Turbine Gas turbines Ship: Gas Turbine Ship (GTS) & mdash; & mdash; Just follow said. A Steam Turbine, Steam Turbine ship: though Turbine Turbine Steamer (TS) or Turbine Steamship (TSS)