“双对称”的英语？

“双对称”的拼音为：shuāng duì chèn...

连杆 式 门闩系统用于控制圆拉杆或扁拉杆通过双对称,左右门均适用.Rod - Latch system to control round or flat rods . RH and LH application through double symmetry.研究了子阵约束下双对称矩阵反问题的最小二乘问题.Finally, least - squares solution for the inverse problem of bisym...