英文科技論文寫作樣式指南-空格
英文科技論文寫作樣式指南-空格
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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214–215頁(yè)
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Spacing
空格
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?? Leave ? a space before and after functions set in roman type, unless the argument is ? enclosed in parentheses, brackets, or braces.
?? 除非參數(shù)包含在圓括號(hào)、方括號(hào)或大括號(hào)中,否則在以羅馬字體的函數(shù)前后留空格。
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log 2
–log ? x
4 sin ? θ
tan2 ? y
exp(–x)
cosh(βe0φ)
4 ? tan(2y)
erfc(y)
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?? Leave ? a space before and after mathematical operators that function as verbs or ? conjunctions; that is, they have numbers on both sides or a symbol for a ? variable on one side and a number on the other.
?? 在充當(dāng)動(dòng)詞或連詞的數(shù)學(xué)運(yùn)算符前后留空格;也就是說(shuō),它們的兩邊都有數(shù)字,或者一邊是變量的符號(hào),另一邊是數(shù)字。
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20 ± ? 2%
3.24 ? ± 0.01
4 × 5 ? cm
8 × ? 10–4
k ≥ 420 s–1
p < ? 0.01
Tg = ? 176 °C
n = 25
1 ? in. = 2.54 cm
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例外1:
Leave ? no space around mathematical operators in subscripts and superscripts.
上標(biāo)和下標(biāo)中的數(shù)學(xué)運(yùn)算符前后不留空格。
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例1:ΔHn–1
例2:Eλ>353
例3:M(x+y)+
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例外2:
Leave ? no space around a slash (a/b), a ratio colon (1:10), or a centered dot (PM·V).
斜杠(a/b)、比率冒號(hào)(1:10)或中心點(diǎn)(PM·V)前后不留空格。
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?? Leave ? no space between simple variables being multiplied: xy. Do not use a centered dot (·) or the times sign (×) with ? single-letter scalar variables.
?? 要相乘的簡(jiǎn)單變量之間不留空格:xy。切勿在單字母標(biāo)量變量中使用中心點(diǎn)(·)或乘號(hào)(×)。
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?? In ? multiplication involving the two-letter symbols for transport properties, use ? a space, enclose them in parentheses, or use the times sign. When ? superscripts or subscripts are present, the symbols can be closed up.
?? 在涉及傳輸屬性的雙字母符號(hào)的乘法中,使用空格、將它們括在括號(hào)中或使用乘號(hào)。當(dāng)存在上標(biāo)或下標(biāo)時(shí),符號(hào)可以閉合。
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例1:Re Nu
例2:(Re)(Nu)
例3:Re × Nu
例4:RexNuy
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?? Use a ? space for simple multiplication of functions of the type f(x) (one-dimensional) ? or g(y, z) ? (multidimensional). Close up multipliers to such functions where applicable. ? You may also use additional enclosing marks instead of spaces.
?? 使用空格對(duì)f(x)(一維)或g(y, z)(多維)類型的函數(shù)進(jìn)行簡(jiǎn)單乘法。在適用的情況下,閉合此類函數(shù)的乘數(shù)。亦可使用附加的封閉標(biāo)記代替空格。
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例1:W = 2f(x) g(y, z)(空格)
例2:W = 2[f(x)][g(y, z)](閉合標(biāo)號(hào)——方括號(hào))
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?? When ? mathematical symbols are used as adjectives, that is, with one number that is ? not part of a mathematical operation, do not leave a space between the symbol ? and the number.
?? 當(dāng)數(shù)學(xué)符號(hào)用作形容詞時(shí),也就是說(shuō),使用一個(gè)不屬于數(shù)學(xué)運(yùn)算的數(shù)字時(shí),不要在符號(hào)和數(shù)字之間留空格。
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–12 ? °C
25 g ? (±1%)
at ? 400× magnification
The ? level can vary from –15 to +25 m.
a ? conversion of >50%
a ? probability of <0.01
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