常见例句双语例句The conclusion is that the sedimentary environment of coal measures in Changyang area, Shuangyang basin is mainly fan delta and limnetic deposits.得出的结论是：双阳盆地长岭区煤系地层沉积环境主要为扇三角洲沉积和湖泊沼泽沉积。chazidian.com 返回 limnetic coal