ေရေၾကာင္းလမ္းျပအင္ဂ်င္နီယာပညာ [Archive] - ျမန္မာအင္ဂ်င္နီယာဖုိရမ္

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  1. Controlling/Maneuvring
  2. Maneuvering
  3. International Regulations for Preventing Collisions at Sea, 1972