英文科技論文寫作樣式指南-符號(hào)用法和樣式
英文科技論文寫作樣式指南-符號(hào)用法和樣式
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本文英文內(nèi)容摘自
"Anne M. Coghill, Lorrin R. Garson. The ACS Style Guide: Effective Communication of Scientific Information, American Chemical Society: Washington, DC, 2006"
第二部分(Part 2. Style Guidelines)
第11章(11. Numbers, Mathematics, and Units of Measure)
第211頁
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Usage and Style for Symbols
符號(hào)用法和樣式
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?? Define ? all symbols for mathematical constants, variables, and unknown quantities the ? first time you use them in the text. If you use them in the abstract, define ? them there and then again at their first appearance in text. Do not define ? standard mathematical constants such as π, i, and e.
?? 第一次在文本中使用數(shù)學(xué)常量、變量和未知量時(shí),請(qǐng)定義它們的所有符號(hào)。若在摘要中使用它們,則在摘要中定義它們,然后在它們第一次出現(xiàn)在文本中時(shí)再次定義。切勿定義標(biāo)準(zhǔn)的數(shù)學(xué)常數(shù),如π、i和e。
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?? Form ? the plurals of mathematical symbols by adding an apostrophe and “s” if you ? cannot use a word such as “values” or “l(fā)evels”.
?? 若不能使用諸如“values”或“levels”之類的單詞,則通過添加撇號(hào)和“s”來形成數(shù)學(xué)符號(hào)的復(fù)數(shù)。
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large r values比large r’s更好
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?? Do ? not use an equal sign as an abbreviation for the word “is” or the word “equals” ? in narrative text.
?? 切勿在敘述性文本中使用等號(hào)作為單詞“is”或單詞“equals”的縮寫。
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例1:PV = nRT, where P is pressure(而非where P = pressure)
例2:when the temperature is 50 °C(而非when the temperature = 50 °C)
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?? Do ? not use a plus sign as an abbreviation for the word “and” in narrative text.
?? 切勿在敘述性文本中使用加號(hào)作為單詞“and”的縮寫。
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例1:a mixture of A and B(而非a mixture of A + B)
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?? Do ? not use an asterisk to indicate multiplication except in computer language ? expressions.
?? 除非在計(jì)算機(jī)語言表達(dá)式中,否則不要使用星號(hào)表示乘法。
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