年平均水位 meaning in Chinese

annual mean water level
mean annual water level

Honghu lake has a little direct impact on groundwater , but the indirect impact of which is powerful . 3 . the impact on confined water from changjiang river is depressive with the distance to the riverside increasing . the confined water level changes differently in different season and region while the water level of changjiang river changes each unit
研究结果表明： 1 、地下水埋深较浅，月平均水位以年为周期变化，年平均水位变化较小； 2 、在近岸地区降水不是影响地下水的主要因素，洪湖对地下水的直接影响范围较小，间接影响大； 3 、长江对承压水的影响强度是随着距离增加而递减的，长江水位每变化一个单位，不同季节、地区的承压水位的响应变化不同。