Title : title should be simple，concise and informative。

authors ' names and affiliations : a list of all the authors，as well as their corresponding addresses，Should be provided . each address Should beaddresses should contains all information neceary for effective mail delivery。

abstract : an abstract must accomany each article。it should be a concise summary of the results，Conclusions and/or other significant items in the paper。together with the title，It must be adequate as an index to all the subjects treated in the paper，And will be sued as a base for indexing。any displayed mathematical expressions are avoided . all the nontandard symbols and abbreviations should be defi Ned。the footnote indicators cannot be used。a reference，if neceary，should be included in square brackets。the results，the conclusions，And/or other significant items should be summarie in the paper。

physcs and astrontomy class ification scheme(PACS)indexing codes : each manual script must be given PACS numbers，Developed by the American indexing codes 3360there should be no more than three index number codes；principal index code should be placed first。

main body of the paper 3360 manuals must be doubled spaced with margins and indented paragraphs。each manual script must be complete with figures，tables，references，subtitles，etc。

mathematical material : all mathematical equations should be carefully written and checked so that a composite or can follow the copy easily . gryequation numbers should be Arabic numbers enclosed in parentheses in The right-hand margin . all The quantities in both The equations and/or The forentheses

italic type should be avoided for the following 3360 units of measurement(e . g .km，g，k，cm-2，s-2)；Mathematical signs such as sin，cos，log，exp，etc。化学公式。chemical formulation。

references : citations in the text to references shall be numeric strictly in order of their first appearance。journal articles citation of a journal Article should include The names of all The authors(or，optionally，The first three author followed by " et al .”。

figure and table captions 3360 each caption should be written as a single brief paragraph without indentation . figures and tables should be consecures

tables And figures 3360 each table must be numbered consecut vely with Arabic numerals，And must have a complete title . authors are strongly encouralsgood quality figures have the following characteristic sthey should have lines，letters，Numbers and symbols of uniform strength and contrast . fightthe final thickness of a line in a figure usually lies within the range of 0.15-0.20mm . when preparing the figures，Authors should pay attention to the