metallic melanism 银质沉着病
industrial melanism 工业黑化现象
melanism mutation 黑化突变
industrial development melanism 工业黑化现象
wheat melanism and brown necrosis 小麦黑化及褐坏死
N the condition in man and animals of having dark-coloured or black skin, feathers, etc. Industrial melanism is the occurrence of dark varieties of animals, esp moths, in smoke-blackened industrial regions, in which they are well camouflaged 黑变症
What advantage melanism brings in these circumstances is obscure.
在这些环境中表皮黑化到底有什么优势似乎模糊不清。
Sixty percent of the tumors were accompanied with calcification, 35% with ossification, 25.5% with hemosiderin or melanism.
病例伴有钙化，35％有骨化，25.5％有含铁血黄素或黑色素沉着。
Insect melanism is one of the common polymorphism in nature, and has become classical study system for species evolution and adaptability.
昆虫黑化是自然界中普遍存在的一种多型现象，也成为揭示物种在自然界中进化与适应的经典范例。
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