Beside having similar properties to mollusc shell nuclei, the new pearl nuclei possess some advantages such as white color, strong luster, round shape and cheap cost.
这种珠核物化性质与现有贝、蚌壳珠核相近，具有颜色白、光泽强、外形圆和价格低廉等特点。
Embankment shell variety, mostly for the intertidal zone or shallow seabed sediment mollusc species present health.
堤上贝壳种类丰富，多为潮间带或浅海泥沙海底软体动物的现生种属。
Description of the medical mollusc egg, including egg shape, size, colour, egg shell.
指对医学软体动物卵的描述，包括卵的形状、大小、颜色、卵壳及其他特征。
Description of the medical mollusc egg, including egg shape, size, colour, egg shell.
指对医学软体动物卵的描述，包括卵的形状、大小、颜色、卵壳及其他特征。
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