二氧化锰

In order to improve wave-absorption properties and wave band of single absorbent,a novel absorbing medium of carbon black doped with nanometer-sized manganese dioxide was prepared.

为了改善单一吸收剂对电磁波的吸收性能并有效拓宽吸收频段，采用纳米二氧化锰掺杂炭黑制备了一种新型的复合吸收剂，并对吸收剂的TEM颗粒形貌，介电特性和微波吸收性能进行了研究。

A novel absorbing medium of carbon black doped with nanometer sized manganese dioxide were prepared.

基于单一吸收剂无法达到良好的微波吸收效果，利用纳米二氧化锰掺杂炭黑颗粒制备了一种新型的复合吸收剂，并进行TEM形貌表征，介电性能分析以及微波吸收性能的测试。

The phosphors were obtained by the high temperature solid state reaction method and sol-gel method with barium carbonate, aluminium hydrate and manganese dioxide.

本文以碳酸钡，氢氧化铝，二氧化锰及稀土元素等为原料，通过高温固相和溶胶凝胶两种方法合成绿色荧光粉。

The results showed that the decompound ratio of molybdenum disulfide and ratio of sulfur fixation could reach 99.5% and 92% respectively when the reactant ratio n(MnO_2)/n(MoS_2) was 3, reaction temperature was 450℃ and 550℃, reaction time was all 2h, and air flow was 15-20ml/min. The calcine were leached by sulfuric acid when the temperature was 30℃, and the leaching ratio of molybdenum and manganese could reach 99% and 92% respectively.

结果表明，将辉钼矿(MoS_2)和二氧化锰(MnO_2)按摩尔比1：3的比例混合均匀，在管式炉中依次在温度为450℃和550℃下分别焙烧2小时，鼓风量为15-20ml/min，此条件下MoS_2的分解率可达99.5%以上，固硫率可以达92%。

It can play an important role in the process of water decontamination.

综合本文的研究成果，作者认为新生态二氧化锰是一种高效、安全、无毒的净水药剂，可以在净水过程中发挥重要的作用。

There has been a rebirth of two old systems, lead acid and alkaline zinc-manganese dioxide, to make them more competitive.

两种老的电池体系还获得了新生，铅酸电池和碱性锌二氧化锰电池也参与了竞争。

The company mainly produces electrolytic manganese dioxide, an annual production capacity of 40,000 tons.

公司主要生产电解二氧化锰，年生产能力4万吨。

The company has a 30- year history of producing electrolytic Manganese Dioxide.

公司有30余年的电解二氧化锰生产历史，公司以先进的生产技术为基础，以丰富的锰矿资源为依托，加上廉价的劳动力成本，产品深受用户好评。

Current production of lithium column and button / manganese dioxide, lithium / thionyl chloride, lithium / FeS 2 battery specification is complete.

公司目前生产柱式和扣式的锂/二氧化锰、锂/亚硫酰氯、锂/二硫化亚铁电池规格齐全。

All ofthese reactions were carried out under mild conditions and are new effective methodsfor the preparation of indolizine derivatives. The reaction of phthalazinium and quinoxalinium N-ylides with electron-deficientolefins in the presence of oxidants have also been studied, it has been found that activemanganese dioxide could behave as a dehydrogenating oxidant. Pyrrolo[2,1-a]phthalazines and pyrrolo[1,2-a]quinoxalines are obtained in this way.

本文还对六员二氮杂环化合物酞嗪和喹喔啉的N-叶立德在氧化剂存在下与缺电子烯烃的l，3-偶极环加成反应作了研究，发现活性二氧化锰也是一个优良的氧化剂，并分别合成得到了吡咯并[2，1-a]酞嗪和吡咯并[1，2-a]喹喔啉衍生物。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。