1 flowchart can be expressed in this way
2 Application of special symbols
1) Hyphen "-", used in English or digital or between English and digital, reference to the beginning and end of the page and serial number between.
For example: SZB-4 vacuum pump, 1999-01-10, literature [1-5].
2) The Half-line "–" is used for Chinese characters or between numbers representing graphs, tables, and formula ordinals.
For example: stress-strain curve, voltage-current curve,
Figure 1–3, table 2–5, formula (1) – (4).
3 Standard expression of graphs
1) The picture sequence and the picture question to leave a Chinese character space, the center is ranked below the diagram.
2) The target is composed of quantity and unit, using "Quantity/unit" form, such as:m/kg,v/(M s-1); The quantity is in italics, the unit (refers to the unit behind the quantity) is not indicated by the Italic body.
such as T/min or time/min
t/s or time/s
4 Draw curve requires at least 5 points
5 Formal expression of tables
Three-wire tabular format
The standard form of "quantity/unit", such as:m/kg,v/(M s-1), is used as the same as the figure, and the quantity is in italics, and the unit (refers to the unit behind the quantity) is not represented by the italic body.
6 positive italic and case use
The use range of italic body
1) A physical volume symbol, a letter representing a variable or a volatile number.
such as:m(mass),V(volume), Ai (i =,...).
2) Mathematical representation of the amount and function of letters , representing points, lines,
Faces and the letters of the graphic. such as:x, Y, a, b, F (t), point a,
Linear AB,ABC and so on.
3) to the (vector) quantity, matrix, and tensor symbols . Represents a black italic, such asP(vector),Q(tensor), of letters to (vector) quantities, matrices, and tensor.
4) The Latin literary name of the following (including genus) in biology.
Such as: Horse Genus (Equus), Clove Pseudomonas aeruginosa (Pseudomonas syringae) and so on.
5) Feature number symbol. such as Re(Reynolds number),Fo(Fourier number) and other 25 characteristic number symbol.
6) Chemical expression of optical activity, molecular configuration, image, substitution base position, and other symbols. such as L-(left-hand),O -(adjacent position),SP-(trans- ), and so on (trans-).
Traditional range of Use
1) Unit of measure, SI prefix and dimension symbol . such as M, Min, K, MM, L (dimensional symbols of length), etc.
2) arithmetic symbols, abbreviation symbols, special function symbols and set symbols in mathematical formula . D, Min, Max, Lim, sin, LG, etc.
3) chemical element symbol . such as NA, CA and so on.
4) Arabic numerals, Roman numerals, and Latin letters indicating serial numbers .
5) The letter of the variable is not represented in the subscript .
such as: Ek (kinetic energy), Ep (potential energy).
Use range of uppercase letters
1) The first letter of the unit symbol from the person's name. such as Pa.
2)a symbol representing more than 103 factors in SI prefix. such as M (106), G (109). No k
3) Dimension symbol. such as l (length), T (time).
4) The first letter of the chemical element symbol. such as Cl.
5) First letter of name, parent name and surname.
6) The first letter of the month and the week.
7) The first letter of the foreign-language proper noun.
8) Abbreviations for terms of scientific and technical terminology, in full capitalization.
9) The first letter of the notional in the English title (except for the 3-letter prepositions and the articles).
ph value
Use range for lowercase letters
1) unit symbol (except for the first letter of the unit symbol from the person's name). such as kg, MG, Pa and so on.
2) prefix symbol in SI prefix that represents 103 and below factors.
such as K (103, Thousand), μ (10-6, micro) and so on.
7 Digital Use
Use Arabic numerals for occasions
The use of Chinese numerals in the occasion
Other precautions
Notes on paper writing