年最低 meaning in Chinese

annual minimum

2004 , and was the lowest in four years
多宗，是过去四年最低。
An index of pending home sales fell unexpectedly to its lowest level in four years in march
一个衡量待售房屋的指数在三月降至出乎意料的四年最低水平。
Based on the part of 203 stations data from 1957 - 2001 which are of more extreme sense , the variation characteristics of extreme temperature are studied
本文利用我国203个测站1957 2001年最低、最高地面气温资料中更具有极端意义的部分，对我国极端气温的变化特征进行研究。
2 . based on the analysis of the historical evolution of jinan springs ' spurting , a quantity equation between the anaual average spring discharge and the anaual lowest water table is built according to the statistic data , which enable us to gain the corresponding relation between baseline water level and the smallest scenic discharge of spring gushing . then the groundwater discharge in the spring area is calculated and the controlling parameter of maximum available amount of groundwater exploiting is obtained
泉域总面积1486平方公里。 (二)通过分析济南市泉群喷涌历史统计资料，首先建立泉群年平均喷涌量与年最低地下水位之间的定量方程，得出四大泉群喷涌的底限水位与最低景观流量的对应关系，然后，计算泉域内地下水的入渗补给量，再得出保证泉涌的地下水最大允许开采量的控制性参数。