1. 空氣在與燃燒生成物混合之前要進(jìn)行預(yù)熱。
   Before mixing with the products of combustion, the air is preheated.
2. 降解，遞降分解化合物的遞降分解，顯示出清楚明白的中間生成物
   Decomposition of a compound by stages, exhibiting well-defined intermediate products.
3. 一種能生成和傳送代表數(shù)據(jù)或話音的信號(hào)的裝置。
   A device that can generate and propagate signals representing data or speech.
4. 語法規(guī)則隱含在一種語言中的規(guī)則體系，被看作在該語言中生成所有可能的語句的機(jī)制
   The system of rules implicit in a language, viewed as a mechanism for generating all sentences possible in that language.

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成的英語翻譯：