The principle, technological condition selection and process of co conversion as well as catalyser's heating-up and reduction are discussed.
介绍CO变换的原理、工艺条件的选择、工艺流程、催化剂的升温和还原。
The linguistic communication process, in fact, is also the unceasing procedure of selection of language according to actual and appropriate condition by its users.
实质上，这一言语交际过程也是语言使用者不断地对语言进行具体的、适合交际环境的选择过程。
The plasma nitriding process, the service condition, the selection of material and the plasma nitriding processing of the large-scale automobile cast iron dies were reviewed and discussed.
对铸铁的离子渗氮技术进行了综合评述，讨论了大型汽车覆盖件模具服役条件、材料选择和铸铁离子渗氮工艺。
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