世界中小型商船数量商船，是指杂货船、油船、散货船、集装箱船、液化气船、冷藏船、化学品船和客船这８种船。所谓中小型商船，是指２万ｄｗｔ以下的商船。据１９９６年年初统计，世界商船队共计３７０１５艘、７．０２亿ｄｗｔ，其中２万ｄｗｔ以下的中小型商船有２８... The number of small and medium-sized merchant vessels in the world  Merchant vessels refer to eight types of vessels: general cargo vessels, oil tankers, bulk carriers, container ships, liquefied gas carriers, refrigerated ships, chemical tankers and passenger ships. The so-called small and medium-sized merchant, refers to 20,000 DWT below the merchant. According to the statistics from the beginning of 1996, the world’s merchant fleet totaled 37,015 vessels with a total volume of 702 million dwt, of which 28,000 were small and medium-sized ...