精选优质文档-倾情为你奉上LESSON 1Diesel enginesThe majority of ships around the world continue to be powered exclusively by diesel engines. 世界范围内大多数船舶都是采用柴油机作为动力。The predominance of diesel engines has come from improved engine efficiencies and designs compared to other forms of propulsion such as steam or gas turbines. 与蒸汽机、燃气轮机等形式的动力装置相比，无论是效率上的提高，还是设计上的进步，柴油机都体现出了一定的优势。Many combinations and configurations of diesel engine power plant exist. All provide the energy to do the work of movin
