本文阐述了三相异步电动机延边三角形接法多路并联进线时磁动势不平衡的原因，并提出了相应的预防措施。
The paper expatiates on the reason of unbalanced magnetic motive force and its preventive measures for asynchronous motor with multipath extended delta connection.
直接法中的平方根法，就是利用对称正定矩阵的三角分解而得到的求解对称正定方程组的一种有效方法。
Square root method is one of direct methods, which is an effective method for the solution of symmetrical positive liner equations through triangle decomposition of symmetrical positive matrix.
为了减少面绘制中三角面片数量，节省空间，提高重建效果，提出了经纬线连接法。
In order to reduce the number of triangular patches in surface rendering, save space and improve reconstruction results, a contour connecting method based on interzone line was proposed in this paper.
为了减少面绘制中三角面片数量，节省空间，提高重建效果，提出了经纬线连接法。
In order to reduce the number of triangular patches in surface rendering, save space and improve reconstruction results, a contour connecting method based on interzone line was proposed in this paper.
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