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用雪块做模型就能模拟预测雪崩？看看外国科学家的骚操作
《地球之极·侣行2：穿越北美》张昕宇梁红带领侣行团队来到落基山脉的加拿大冰川国家公园，加拿大皇家炮兵每年冬天都在做一件听起来不可思议的事情——人造雪崩。
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