(a) cover 1, cover. Paper covers are uniformly printed by the school. There is no page number. 2. Yi Feng (Chinese abstract) Chinese abstract: The word "Chinese abstract" is in the center of the first line and is bold with two bold small characters. The content is in small four-character font. Start with two spaces and return to the top. Chinese abstracts generally do not exceed 250-300 words. Keywords: printing Chinese abstract. The word "keyword" is in two spaces, followed by a colon to separate it from keywords, and each keyword is separated by a comma. There are usually 3-8 keywords. 3. Cover 2 (foreign language abstract) Foreign language abstract: The English word "foreign language abstract" is in the center of the first line, in bold small two bold characters. The content is in small four-character font. Start with two spaces and return to the top. Generally speaking, foreign language abstracts do not exceed 250 notional words. Keywords: printing foreign language abstracts. The English word "Key 6 words" is in two spaces, followed by a colon and a keyword, and separated by a comma. Foreign keywords should correspond to Chinese keywords. (2) The text of the text is generally in small four-song style, and the key sentences are bold. 1, title level. All title levels of graduation thesis should be neat and clear, and the same level should be expressed in a unified way. The contents under the headings at all levels in the text should correspond to their respective headings, and there should be no contents unrelated to the headings. The title of each layer occupies a separate line. The first-level title is placed in the middle; The topic ordinal number of the second, third and fourth grades is placed in the top box, and the blank box behind it is the topic content, without punctuation at the end. 2. Quantity and unit. All units of measurement shall adopt the national standard GB 3 100-GB 3 102-93. Units of non-physical quantities can be composed of Chinese characters and symbols. 3. Punctuation. Punctuation marks should be used correctly in accordance with the unified provisions of the Measures for the Use of Punctuation Marks promulgated by the State Press and Publication Administration to avoid misuse and confusion. 4. Foreign letters. Foreign language letters are written in accordance with the provisions of China and relevant international standards. Distinguish between italics, uppercase and lowercase letters and footprints. 5. Nouns and names. The scientific and technological terms shall adopt the standardized terms published by the National Committee for the Examination and Approval of Natural Science and Technology Terms or the names specified in national standards and ministerial standards. For terms that have not been uniformly defined or whose names are controversial, common names can be used. 6. Numbers. The numerals in this paper should use Arabic numerals except some words, phrases, idioms, abbreviations and numerals used as morphemes in structured ordinal numbers and rhetorical sentences. In the same text, the representation of numbers should be consistent. 7. formula. Formulas are generally placed in the middle; The numbered formulas should be placed in the top box, and the numbers should be marked on the right side of the formula with brackets. No dotted line should be added between the formulas and the numbers. 8. Tables and illustrations. (1) table. Each table should have its own order and title. The contents in the table should be aligned, and the numbers and characters in the table should not be replaced by "ditto" or symbols when repeated continuously. When there is a whole paragraph in the table, leave a space at the beginning of the line, go back to the beginning of the line, and finally don't use punctuation. (2) illustrations. Each drawing should have its own drawing order.