Any of several green algae of the genus Ulva, having a membranous leaflike, irregularly shaped thallus sometimes used in salads.
一种石莼属的绿色海藻，有膜状叶形的不规则的叶状体，经常用在沙拉中。
Sargassums are also known as sea holly because of their highly Branched stems with hollow, Berrylike floats and many leaflike, sawtooth-edged Blades.
马尾藻还因其高度分支、浆果状气囊和许多带锯齿边缘的叶片状拟叶而被称为海冬青。
Early and middle delta was leaflike delta, at this sedimentary period, lake shoreline was comparatively steady-going, the lake and the river both had some energy.
早、中期三角洲为叶状三角洲，在此沉积时期，湖岸线相对稳定，河湖均有一定能量。
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