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.
攪拌線圈産生平行於對稱軸的磁場，其磁感應強度在鑄錠部分呈均勻分佈；
www.rmme.ac.cn
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.
指出晶格不具備五度及六度以上對稱軸的雙軸証明是正確的。
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.
用分步計算和廣義球麪坐標變換兩種方法對橢球躰繞對稱軸鏇轉的轉動慣量進行了計算，計算表明，後一種方法簡單、實用，在工程實際中有應用價值。