这四种淡水蚌外套膜是一类优质的动物蛋白质资源。
These results showed that the mantellum of all the four testing mussels are good protein resources.
蚌科是淡水底栖动物的重要类群，由于淡水蚌类存在趋同现象，致使我国蚌科在分类上仍然存在许多争议。
Unionidae is an important group of freshwater benthos. Due to the convergence phenomenon of freshwater mussels, there is still much controversy in the classification of Chinese Unionidae.
围隔实验研究了褶纹冠蚌、三角帆蚌与河蚬等三种淡水贝类对水环境的调控作用。
Effects of Cristaria plicata, Hyriopsis cumingii and Corbicula fluminea on restoring aquatic environment were studied.
黑土湖组为全新世早—中期湖沼相沉积的灰—灰黑色粘土类粉砂质粘土，含大量淡水螺蚌介壳；
Heituhu formation is gray and gray-black silty clay with limnological facies in early and middle period of Holocene, and bearing lots of spiral case;
黑土湖组为全新世早—中期湖沼相沉积的灰—灰黑色粘土类粉砂质粘土，含大量淡水螺蚌介壳；
Heituhu formation is gray and gray-black silty clay with limnological facies in early and middle period of Holocene, and bearing lots of spiral case;
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