近年来,在高中物理资料中,出现了一个频率很高的力学题,题目如下:1999年中国首次北极科学考察队乘坐我国自行研制的“雪龙”号科学考察船对北极地区海域进行了全方位的卓有成效的科学考察。“雪龙”号科学考察船不仅采用特殊的材料制成,而且船体的结构也满足一定的条件,以对付北极地区冰块与冰层。它要靠本身的重力压碎周围的冰块同时又将碎冰块挤向船底,如果碎冰 In recent years, a high-frequency mechanical problem has appeared in the high school physics materials. The topics are as follows: In 1999, China’s first Arctic scientific expedition team took a self-developed scientific exploration ship “Xue Long” in the Arctic region A full range of fruitful scientific investigation. “Snow Dragon ” scientific research ship not only made of special materials, but also to meet the structure of the hull of certain conditions to deal with Arctic ice and ice. It will crush the ice around by its own gravity and squeeze the ice to the bottom of the ship.