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They called him a bivalve and ran quickly away .

他们很快地认定他是一个壳贝并且跑开。

Optimization of methods for preparation of metaphase chromosome in bivalve .

双壳贝类染色体标本制备技术的优化。

Marine or freshwater bivalve mollusk that lives attached to rocks etc.

附着在岩石等物上的海水或淡水双科类软体动物。

" Any of various marine gastropod mollusks , chiefly of the genus urosalpinx , that bore holes into the shells of bivalve mollusks . U. cinera is destructive to oysters . "

“海洋腹足纲软体动物，主要指在双壳类软体动物的贝壳上钻孔的骨螺属。该属的尾角螺对牡蛎十分有害。”

Marine bivalve common in philippine coastal waters characterized by a large thin flat translucent shell .

产于菲律宾沿海水域中普通的海生双壳类动物，有半透明的大而薄的壳。