如图甲，筒车是�国古代�学�作《天工开物》中描述的一种以水流为动力来取水的机械，其模型如图乙所示，筒车在水流的作用下匀速转动，下列说法正确的是（ Sketch Coloring Page

如图甲，筒车是�国古代�学�作《天工开物》中描述的一种以水流为动力来取水的机械，其模型如图乙所示，筒车在水流的作用下匀速转动，下列说法正确的是（ Template

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tomski如图甲，筒车是�国古代�学�作《天工开物》中描述的一种以水流为动力来取水的机械，其模型如图乙所示，筒车在水流的作用下匀速转动，下列说法正确的是（ coloring

如图甲，筒车是�国古代�学�作《天工开物》中描述的一种以水流为动力来取水的机械，其模型如图乙所示，筒车在水流的作用下匀速转动，下列说法正确的是（ sketch template

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