The vanadium phase and valence state of stone-coal with low carbon in Guizhou province were analyzed by electron probe, and a pressure acid leach experiment was carried out.
利用电子探针分析方法对贵州某地低碳石煤中钒矿物和价态进行了分析，并对该矿石进行了加压酸浸试验研究。
Modification function of phosphoric acid to low temperature carbon based on polyacrylonitrile was investigated.
研究了磷酸对聚丙烯腈基低温碳材料的改性作用。
The surface chemistry of a high modulus and a low modulus carbon fiber, both before and after nitric acid oxidation, were studied by X-ray photoelectron spectroscopy (XPS) and chemical derivatization.
采用X光电子能谱(XPS)及化学衍生法探讨了硝酸氧化前后的碳纤维表面化学的变化。
A low molecular weight poly (DL lactide) containing carbon carbon bonds was synthesized from DL lactide, glycerin and fumaric acid.
由丙三醇、丙交酯和反丁烯二酸制得一含碳碳双健的低分子量聚酯。
Compound cross-linking chemical is compounded by premium priced organic metal salts, derivatives of carbon acid, and low-cost organic metal salts in paper waste liquid in a certain percentage.
复合交联剂由高价有机金属盐、碳酸衍生物及造纸废液中低价有机金属盐按一定比例复合而成。
Carbon monoxide and nitrous acid ester are synthesized through coupling reaction into diester carbonate in the presence of catalyst and at relatively low pressure and temperature.
一种碳酸二酯的合成方法，通过一氧化碳和亚硝酸酯在催化剂存在下，用较低的压力和较低的温度偶联合成碳酸二酯。
Achieve the welding on low carbon steel pieces and low content alloy pieces with acid electrodes and basic electrodes. It is the best products of ac arc welding machines.
焊机可以实现酸性焊条或对低碳钢制件和低合金制件的焊接，是目前交流弧焊机最先进的产品，而且适用于重型工业领域焊接使用。
Achieve the welding on low carbon steel pieces and low content alloy pieces with acid electrodes and basic electrodes. It is the best products of ac arc welding machines.
焊机可以实现酸性焊条或对低碳钢制件和低合金制件的焊接，是目前交流弧焊机最先进的产品，而且适用于重型工业领域焊接使用。
应用推荐