Students may be confronted with difficulties in the application of complicated formulae of Spherical Trigonometry.

球面三角公式繁杂，学生在实际运用时感到困难。

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Students may be confronted with difficulties in the application of complicated formulae of Spherical Trigonometry.

球面三角公式繁杂，学生在实际运用时感到困难。

youdao