10.0机械效率.mp4	2023-12-31 05:45:59	25.63MB
	10.1斜面与杠杆 .mp4	2023-12-31 05:45:59	26.27MB
	10.2杠杆中的轻杆问题 .mp4	2023-12-31 05:45:59	30.82MB
	10.3摩擦力矩对杠杆平衡的影响 .mp4	2023-12-31 05:45:59	26.92MB
	10.4摩擦力矩对杠杆平衡的影响 .mp4	2023-12-31 05:45:59	49.65MB
	10.5滑轮1.mp4	2023-12-31 05:45:59	15.07MB
	10.6滑轮2.mp4	2023-12-31 05:45:59	18.52MB
	10简单机械.pdf	2023-12-31 05:45:59	425.20kB