由于受到美国“次贷危机”的影响,不仅引发了全球金融危机,也给航运企业带来了货物运量减少等严重冲击,加上持续增长的燃油价格、运价走低等不利因素,使得航运企业进入了成本开支增加、利润大幅减少甚至亏损的困境。同时航运企业为了控制经营成本,在船舶机械和设备的维修、 Due to the impact of the U.S. subprime mortgage crisis, it not only triggered the global financial crisis but also brought serious shocks to the shipping enterprises such as the reduction of freight traffic volume. Coupled with the unfavorable factors of the continuously increasing fuel prices and the falling freight rates, Making shipping companies into the cost of spending increased sharply reduced profits or even loss of the plight. At the same time shipping companies in order to control operating costs, maintenance of machinery and equipment in the ship,