为了防止海洋生物附着在船体上，船东会把船舶水线以下的部分涂上特殊的防污涂料。远在传统的帆船时期，人们就开始在船舶上涂有铜化合物，作为一种杀伤剂使用，防止海洋生物附着在船体上。今天让我们一起了解：为什么船舶水线上下使用的涂料是不同的。

To prevent organisms from settling on the hull, ships are coated with special anti-fouling paint below the water line. Sailing ships were traditionally coated with copper compounds that acted as a biocide, preventing marine organisms from adhering to the vessel's hull.In this video we take a brief look at why ships use different paint below the waterline compared to what they use above the surface.