如图所示质量为m的物体a放在倾角为θ的斜面体b上并在图示的水平恒力f作用下使它们之间刚好不�生相对�动而�左运动 已知斜面和水平面均光� Template




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sketch #3260 sorry to over comment on your blog .haha. I 'm just flnpiipg through your posts after finding you through the KCWC. Recently I had this huge urge to learn to sketch with black ink pens. This cloud drawing is exactly the thing that I feel the need to put on paper. : )


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tomski如图所示质量为m的物体a放在倾角为θ的斜面体b上并在图示的水平恒力f作用下使它们之间刚好不�生相对�动而�左运动 已知斜面和水平面均光� coloring