1·The saturation of these compartments with liquid hydrocarbons and the subsequent oil-to-gas reaction causes the expulsion of free water, resulting in a gas accumulation without gas-water interface.
随着石油的进一步聚积及油气的转化，使砂岩中的自由水逐渐被驱除，因此这种异常压力气田是不存在气水界面的。
2·Especially in protozoans, vacuoles perform functions such as storage, ingestion, digestion, excretion, and expulsion of excess water.
特别在原生动物细胞内，有贮存、摄取、消化、排泄及清除多馀水分等功能。