哪位英语比较牛叉的人帮个忙把下面的翻译一下~

中文摘要
港口是一个国家或地区的门户，随着中国的改革开放和经济的迅速发展，港口运输已经越来越重要，现在中国已经是集装箱吞吐量最大的国家，这也使得中国对港口装卸机械的需求越来越大。集装箱吊具作为一种重要的港口装卸机械，在集装箱装卸运输上发挥着重要的作用，而目前大多数吊具都是主要由液压系统组成，吊具的主要动作都是由液压系统控制，而随着电动化的这种发展趋势，各个码头已经越来越青睐全电动吊具，这是因为全电动吊具具有可靠、环保、节能等许多优点，本课题就是要求综合运用所学过的机械基础知识对集装箱吊具的导板结构进行改造，将由液压马达驱动的导板减速箱改为由电动机驱动，要求减速箱要有合适的体积，能够在吊具上安放，并与原来的液压马达驱动的减速箱能够安装互换。因为电动机的转速比液压马达要快的多，所以传动比比较大，设计中的难点就是怎么样在非常有限的空间内实现这么大的传动比，这就要求选取合适类型的减速箱并对减速箱传动零件进行合理的布置，实现所要求的功能。

harbour is the gateway of a country or region.With China's reform and opening-up and the economy's speedy development,port transportation is becoming more and more important.And now china has been the one who has the largest container throughput in the world,making China's demand on freight spreader become heavier and heavier.As a kind of important port cargo handling machinery, freight spreader plays an important part in the shipping and handling of the container.Most of the freight spreader is mainly made up of hydraulic pressure system which controls the staple operation at present.
However,with the development trend of electrification,all the docks prefer to pay more attention to the full-electrical freight spreader because of its advantages of reliability,environment-protective , energy-saving and so on. Here we are required to reform the structure of the freight spreader’s leading board whose positive speed gearbox is driven by the hydraulic pressure motor ,precisely speaking, we need to replace this gearbox with a new one driven by an electrical equipment according to the basic knowledge we’ve learned.So the new gearbox should have an appropriate volume to be able to be placed on the freight spreader and be exchanged with the original one.As the electric motor’s rotate speed is much more faster,the transmission proportion is a bit large.How to implement this in such a limited interspace is exactly where the nodus exists.So choosing an approprate kind of positive speed gearbox and fixing up the transmission spares rationally is indispensable to implement these functions required.