Manuscripts should be submitted online to this journal. The manuscripts, including the Abstract, Keywords, Introduction, Experimental procedures, Results and Discussion, Conclusions, References.

    The abstract should be self-contained and should be adequate as a summary of the article, namely, it should contain aim and significance, experimental methods and main results and conclusions as well; newly developed conceptions, methods, apparatus, techniques, and newly discovered facts, particularly. The authors are requested to provide three to eight Keywords that should be typed below the Abstract.

    Figures and tables should be placed next to the relevant text in the manuscript, rather than at the bottom of the file. Photographs should have a high resolution. They should be glossy, properly focused and exposed. Line drawings should be clear and well designed. The lettering and plotted points should be large enough to be legible after reduction. Graphs should have axes with proper labels such as t/min.

    References should be indicated by number in square brackets in line with the text, and listed in the order they appear in the text. The following examples should be followed:

[1] Joosten H, Clarke D. Wise use of mires and peatlands[J]. International mire conservation group and international peat society, 2002, 304.

[2] Gallios G P, Matis K A. Flotation of salt-type minerals［M］. Berlin: Springer Netherlands, 1992, 208:357-382.

[3] US department of energy, critical materials strategy［EB/OL］. (2011-12)［2017-06-07］. https://www.energy.gov/epsa/downloads/2011-critical-materials-strategy.