As sediment particles in suspension,snails(oncomelania hupensis)are transported in riversand canals,however,their transportaiton mechanism is a complex process of mechanics.
水流输送钉螺同水流输送泥沙一样，是一种复杂
力学过程。
沙As sediment particles in suspension,snails(oncomelania hupensis)are transported in riversand canals,however,their transportaiton mechanism is a complex process of mechanics.
水流输送钉螺同水流输送泥沙一样，是一种复杂力学过程。
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