Shipbuilding activity is generally quantified by reference to tonnage. This causes much confusion because there are several distinct measures of tonnage that are separately relevant to specific circumstances, most of which have nothing to do with the physical weight of the ship. The measures commonly encountered are defined and discussed below. 선박의 크기나 조선 건조량은 톤수로 계량된다. 이런 톤수는 많은 혼란을 일으키는데, 톤수의 ..