四大盆地sì dà pén dì释义four great basin depressions of China, namely: Tarim 塔里木盆地 in south Xinjiang, Jungar 準葛爾盆地|准葛尔盆地 and Tsaidam or Qaidam 柴達木盆地|柴达木盆地 in north Xinjiang Sichuan 四川盆地单字详解四si大da盆pen地de