1.
A mixture of black manganese oxide minerals.
硬锰矿一种黑色氧化锰矿的混合物
2.
a black mineral consisting of basic manganese oxide; a source of manganese.
一种黑色矿物，由基性氧化锰组成，是锰的来源。
3.
an oxide of manganese found naturally as hausmannite.
一种锰的氧化物，作为黑锰矿天然存在。
4.
The mineral form of black iron oxide, Fe3O4, that often occurs with magnesium, zinc, and manganese and is an important ore of iron.
磁铁矿黑色氧化铁矿，Fe3O4，经常和镁、锌以及锰共生，是一种重要的铁矿石
5.
A soft, black to dark gray mineral, MnO2, the commonest and most important secondary ore of manganese.
软锰矿一种软的，黑色至灰黑色的矿物质，MnO2，是最普通最重要的锰矿
6.
Research on Preparation of Chemical Manganese Dioxide for Alkaline Zn-Mn Battery from a Low-grade Manganese Carbonate Ore
贫菱锰矿合成碱锰电池级化学二氧化锰研究
7.
Study on Oxidation of Coking Wastewater by Manganese Oxide Mineral;
氧化型锰矿石氧化焦化废水实验研究
8.
UV-Vis Spectroscopic Study of Aluminum-Manganese Cooperative Effect on the Melanin Formation from DOPA Oxidation
多巴氧化生成黑色素过程中锰和铝协同作用的紫外可见光谱研究
9.
Study on Mechanism of SO_2 Oxidation by Pyrolusite Slurry Combined with Thiobacillus Ferrooxidans and Manganese Bacteria;
软锰矿浆与铁、锰细菌催化氧化SO_2的机理研究
10.
Optimize the Leaching Process of Producing Electrolytic Manganese Dioxide from Rhodochrosite
电解二氧化锰生产中贫锰矿浸取工艺的优化
11.
Syntheses, Adsorption and Oxidation of Todorokite-Manganite with Different Mn AOS;
不同氧化度钙锰矿—水锰矿的合成及其吸附氧化特性
12.
a mineral consisting of manganese tetroxide; a source of manganese.
一种由四氧化锰组成的矿物，是锰的来源。
13.
a mineral consisting of manganese dioxide; an important source of manganese.
一种含有二氧化锰的矿物，是锰的重要来源。
14.
Mn-METALLOGENIC CHARACTERISTICS AND FINE Mn ORE SEARCHING DIRECTION IN THE SOUTHWEST FUJIAN-NORTHEAST GUANGDONG AREA
闽西南—粤东北成锰特征及优质氧化锰找矿方向
15.
Study on the Preparation of Manganic Manganous Oxide from Low Grade Rhodochrosite and the Control of Its Forming Process;
贫菱锰矿制备四氧化三锰过程的控制研究
16.
Relation Between Average Oxidation State of Mn of Birnessite and the Amount of Pb~(2+) Adsorbed
水钠锰矿的锰氧化度与Pb~(2+)吸附量的关系
17.
Experimental Study on Preparation of Manganese Sulfate from Refractory Manganese Oxide Ores
难选氧化锰矿石制取硫酸锰工艺试验研究
18.
Investigations of Preparating Lead-sulfate and Mangano-manganic-oxide from Galena Concentrate and Pyrolusit;
从方铅矿精矿和软锰矿直接制备硫酸铅和四氧化三锰材料的研究