地下水位降落: drop in groundwater levelfalling of watertablelowering of ground water levellowering of the underground water level
实际: 1.(客观存在的事物、情况) reality; practice 短语和例子实际上 in fact; in reality; actually; as a matter of fact; to all intents and purposes; 符合实际 correspond to reality; 客观实际 objective reality2.(实有的) practic