symmetry axis

基本解释

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；
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It is pointed out that the demonstration is right on the nonexistence of 5-fold and greater than (6-fold) symmetry axis in crystal lattice by double axis.
指出晶格不具备五度及六度以上对称轴的双轴证明是正确的。
The rotary inertia of an ellipsoid rotating around the symmetry axis is calculated by use of the divided calculation and the extensive spherical coordinate transformation.
用分步计算和广义球面坐标变换两种方法对椭球体绕对称轴旋转的转动惯量进行了计算，计算表明，后一种方法简单、实用，在工程实际中有应用价值。