vapourn.蒸气；水蒸气；雾气v.蒸发；吹嘘=vapor（英）.vapourouslyadv.汽化地；蒸气地；蒸气饱和地adv.雾地；有雾地；气态地；汽状地adv.空地；无实际内容地；浮夸地

1. Meanwhile, the gas-liquid ratio for foam drilling or gas-filled underbalanced drilling in normal pressure formations is analyzed.
   同时分析了在常压地层进行泡沫或充气欠平衡压力钻井时所需的气液比。