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black oxide of manganese 软锰矿
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. 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。
an oxide of manganese found naturally as hausmannite. 一种锰的氧化物，作为黑锰矿天然存在。
The oxidation of FeS 2 and reduction of MnO 2 are essencial for the preparation of manganese sulfate through the process of co calcining pyrolusite and pyrite. 软锰矿和黄铁矿共同焙烧制取硫酸锰实质上是完成FeS2 的氧化和MnO2 的还原两大主要反应。
A new indicator reaction is developed on the basis of manganese catalyzed oxidation Of victoria blue B by potassium periodate with nitrilotriacetic acid as an activator. 研究了用氨三乙酸（NTA）作活化剂，锰催化高碘酸钾氧化维多利亚蓝B褪色的指示反应。
A mixture of black manganese oxide minerals. 硬锰矿一种黑色氧化锰矿的混合物
a mineral consisting of hydrated basic oxide of manganese and barium; a source of manganese. 一种由含水的锰和钡的基性氧化物组成的矿物，是锰的来源。
a mineral consisting of hydrated basic oxide of manganese and barium; a source of manganese 一种由含水的锰和钡的基性氧化物组成的矿物，是锰的来源
Experience of Manganese Dioxide Systemization experiments. 具备相关二氧化锰的合成的实验经历.
black oxide of iron 黑色氧化铁(剂)
CHEMICAL ANALYSIS OF MANGANESE ORES. GRAVIMETRIC DETERMINATION OF BARIUM OXIDE. 锰矿的化学分析。氧化钡的重量法测定。
black oxide of uranium 黑色氧化铀
A black mineral consists of basic manganese oxide. 一种黑色矿物，由基性氧化锰组成。
They painted a coat of paint to prevent the oxidation of the ship by seawater. 他们刷了一层油漆以防止船只被海水氧化。
There was no bulk oxidation of the silver. 银不会发生体相氧化。
The material is 801 Tool Steel, the finish is buffed and polished, then Black Oxide. 材料为801号工具钢;成品必须经打磨及抛光;然后黑色氧化处理.
The surface treatments include phosphated ,black oxide,electric zinc plated, HDG, dacromet.etc. 并能提供化学发黑、环保电镀、热浸镀锌、达克罗等表面处理后的产品。
The surface treatments we can offer are including phosphated,black oxide,electric zinc plated,HDG,dacromet.etc. 并能提供化学发黑、环保电镀、热浸镀锌、达克罗等表面处理后的产品。
The majority of researchers believe that the dominant manganese oxide of Co-rich crusts is vernadite. 大多数研究者认为富钴结壳中的锰矿物主要是水羟锰矿。
Chemical analysis of manganese ores. Determination of lime. 锰矿石的化学分析。氧化钙的测定。