题目

英语翻译
The effects of roasting ,mass ratio of H2SO4 to stone coal ,leaching temperature ,liquid to solid ratio ,grinding fineness of stone coal ,and two stage counter current leaching coal reach 65.1% at the mass ratio of H2SO4 to stone coal of 20% .leaching temperature of 95C,leaching time of 30h,liquid to solid ratio of 1.1mL/g,and gringing fineness of 0.1 turn which can changes all experimental basis for the production from stone coal.
Nano cerium oxide films were applied 011 AA7020-T6 aluminum alloy and the effects of acetic acid concentration on the microstructure and clectroni microscopy(SEIVO,X-ray diffraction ) ,and potentiodynamic polarization methods .It has been found that by increasing the caetic acid /CeCl5*7H2O molar ratio .1 ligh yniform and crack free films with well developed grains were obtained and grain sizes of the films decreased .Elimination of cracks and decreasing grain size of the nano cerium oxide films caused corrosion resistance to increase.
A ser

提问时间：2020-06-27

答案

烘培的影响,质量比石头煤炭、研究、液固比温度、磨矿细度、石煤层的两阶段煤及65.1%计数器电流浸在质量比石头煤的研究95C温度高达20%.浸浸出的时间,30h、液固比1.1mL / g,粉磨细度,可以改变一切0.1转试验依据生产从...