请帮忙划分一下英语句子结构7、Moreover,inadditiontoits7、Moreover,inadditiontoitsbeingatransportationpathwayequippedwithamammothphysicalplantoftrackssignals,crossings,bridges,andjunctions,plustelegraphandtelephon

问题：请帮忙划分一下英语句子结构7、Moreover,inadditiontoits7、Moreover,inadditiontoitsbeingatransportationpathwayequippedwithamammothphysicalplantoftrackssignals,crossings,bridges,andjunctions,plustelegraphandtelephon

答案：↓↓↓

耿瑞成的回答：

网友采纳　　主语是therailroad,谓语动词是nurtured,forming是现在分词作状语表示伴随,whathasaptlybeen……这个从句是做forming的宾语.