est.
剑桥词典
- written abbreviation for estimated
估计；估算；估价（estimated 或 estimate的缩写）
the town of Brownford (est. population 14,000) 布朗福德镇（估计人口14000人）
written abbreviation for established : used with a date to show when a company or organization was begun
建立于；设立于；创立于（established的缩写）
P. R. Jones & Co, Est. 1920 P.R.琼斯公司，创立于1920年 返回 est.