there is a barge amount of energy wasted due to friction是什么意思?

there is a barge amount of energy wasted due to friction是什么意思? Is there a window? There is a middle there is a cat there is a problem Is there a school Is there a house___? There is a Is there a. there is a There is a kitshen. There is a pair One inch of draft（吃水） in a single barge is about 17 tons of cargo,and that's almost enough to fill a semitruck（半挂车）.Combine that with carrying about 30 barges instead of the more typical 45,and the drought is decreasing the cargo ca over is village a there there (.) There is a long r______ there. There( )(be)a football match,is there. there is a baby horse over there. there ,a there,is ,phone如何排列?