nacreous luster 中文意思是什麼
nacreous luster
解釋
珍珠光澤-
In pearls, the nacreous layers are generally translucent and composed completely of aragonite, whereas layers without pearly luster are opaque and composed of aragonites and / or vaterites with their relative concentrations different in different pearls
其中具珍珠光澤的珍珠層一般呈半透明狀,均?文石組成;無珍珠光澤的不透明層有時由文石組成,有時由六方碳鈣石組成。
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