To reduce bloating, it may help to avoid or reduce the amount of gas-producing foods you eat. Many carbohydrates cause gas, and the following items are common culprits.
欲减少腹胀，可以试试降低产气食物的摄入量。许多碳水化合物能产生气体，以下是常见的罪魁祸首。
2
This article presented the research on matching technology of casing head and gas-producing wellhead for guaranteeing the safety of drilling and production test operation.
In order to ensure the requirement of high anti-sulfur in Luojiazhai and Tieshan sour gas well, some casing heads and gas-producing wellheads have been imported since 2003.