Constellation arch-constellation arch collision

What is the meaning of Liuhe Arch in the constellation of criminal Hui Chong?

Penalty, Chong, Hui, Liuhe and Arch in the constellation refer to the angles between the two planets and the center of the astrolabe respectively, in which penalty and Chong correspond to 90 degrees and 180 degrees respectively, while Hui, Liuhe and Arch correspond to 0 degrees, 60 degrees and 120 degrees respectively. At different angles, the two planets will have different effects, which will have different effects on the whole astrolabe.