求翻译：主要内容有：水电站坝址的选择，坝区总体布置，水轮机型号的选择，蜗壳尺寸的确定，发电机尺寸的确定，调速器和蝶阀的型号选择，水电站厂房尺寸的确定，引水系统布置等，同时重点研究了安装间楼板的结构设计。并根据要求绘制相应的平面布置图，剖面图以及配筋图，施工图。是什么意思？

The main contents are: the choice of the DAM, dam the overall layout, the choice of turbine models volute size, to determine the size of the generator, governor and butterfly valve type selection, the hydropower plant to determine the size, water diversion system layout, etc., and focus on the struc