Microscopic needle-shaped crystals of herapathite are embedded in a plastic base.
将碘硫酸奎宁的微观针状晶体嵌于塑料片基之中。
Microscopic needle-shaped crystals of herapathite are embedded in a plastic base.
将碘硫酸奎宁的微观针状晶体嵌于塑料片基之中。
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