定期分气(或漏气)之后,对c+1站供气不足造成站的进口压力pZc+1急剧下降使分气点之后,各站的进出口压力均下降,愈接近分气点压力下降愈多。After regular gas separation (or leakage), the inlet pressure pZc+1 at station c+1 falls sharply due to insufficient supply of gas to station c+1. After gas separation point, the inlet and outlet pressure of each station drops, and the pressure drops more as it gets closer to the gas separation point.