Jaguars are largely nocturnal creatures.美洲虎基本上是夜行动物.Jaguars ( Panthera onca ) once ranged from southern South America to theUnited States.美洲虎曾经分布在北美洲南部和美洲南部.Monkeys howled, jaguars roared, parrots and other creatures scr...
山顶上升气流强度随速矢端迹曲率加大而稍有加强.Peak updraft strength is slightly enhanced with hodograph curvature.轴矢量自身可参与矢积.An axial vector may itself enter into a vector product.每个立体的矢径总是正值长度.The radius vector of each solid is always a posit...