The median groove of a diatom valve.
阀缝硅藻阀上的中槽。
One of the two silicified halves of the cell wall of a diatom.
瓣硅藻的两片硅化的细胞壁之一。
The expert points out: now face a diatom mud adornment material sadly arisen, this kind of material belongs to chemical resin, is the natural material, won't cause pollution.
专家指出：如今一种硅藻泥墙面装饰材料悄然兴起，这种物质属于化工树脂，是天然材料，不会造成污染。
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