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。
A large number of limnetic macro algae fossils were found in the Chang6 reservoir in Ansai Oilfield, which proved the existence of macro algae in the Mesozoic.
安塞油田长6油层发现了大量的淡水宏观藻类化石，证实了中生界宏观藻类的存在。
There is the rich limnetic resources in Chinese vast inland water area, the safety of limnetic products have become increasingly prominent problem in recent years.
我国辽阔的内陆水域中有着丰富的淡水资源，近几年淡水产品的安全性问题日益突出。
There is the rich limnetic resources in Chinese vast inland water area, the safety of limnetic products have become increasingly prominent problem in recent years.
我国辽阔的内陆水域中有着丰富的淡水资源，近几年淡水产品的安全性问题日益突出。
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