从生物岩的角度提出深海锰结核（锰质核形石）的描述方法及所用术语。
The method and terminology for describing pelagic manganese nodules (oncolites) have been suggested based on their biogenic origin.
结果表明：低碳球墨铸铁中的石墨是以锰、钙等的硫化物与氧化物作为基底形核并长大形成的。
SEM and TEM examination showed that the graphite in low carbon ductile iron formed nucleus and grew up based on the sulfide and oxide of manganese and calcium.
考察了反应温度、催化剂用量、轴配体、苯乙烯浓度以及双核锰配合物的配体中桥链长度、刚柔性、氧杂原子及其构筑的冠环结构对环氧化反应的影响。
The influences of reaction temperature, catalyst amount, axial ligand, concentration of styrene as well as the length, rigidity and flexibility of the linkers were investigated.
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