1·In this paper, the forced rolling movement about the symmetry axis at a fixed Angle of attack is numerically simulated.
采用数值模拟方法模拟了乘波飞行器在固定迎角下绕其对称轴强迫滚转运动这一过程。
2·The magnetic field in ingot inducted by coil is parallel to the symmetry axis and the magnetic flux density is nearly uniform.
搅拌线圈产生平行于对称轴的磁场，其磁感应强度在铸锭部分呈均匀分布；