zài / zhè dào / jǐ hé tí / zhōng / wǒ men / xū yào / jì suàn / liǎng gè / píng miàn / de / jiāo jiǎo

在这道几何题中，我们需要计算两个平面的交角。

In this geometry problem, we need to calculate the angle of intersection between two planes.