substitution是什么意思
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substitution
英[ˌsʌbstɪ'tju:ʃn] 美[ˌsʌbstɪˈtuʃən, -ˈtju-]
n. 替换; 代替; 代用; <化>取代(作用);
[例句]
The substitution of gas for coal or oil is desirable from the point of view of emissions of greenhouse gases and many other pollutants.
保证正确率,望采纳
如有疑问,请追问
英[ˌsʌbstɪ'tju:ʃn] 美[ˌsʌbstɪˈtuʃən, -ˈtju-]
n. 替换; 代替; 代用; <化>取代(作用);
[例句]
The substitution of gas for coal or oil is desirable from the point of view of emissions of greenhouse gases and many other pollutants.
保证正确率,望采纳
如有疑问,请追问
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