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英语解释:the process of making someone or something ready for something; the process of making food ready for cooking or eating
It is important that the preparation be run entirely in an inert atmosphere.
A great number of enzyme and bacterial preparation with a wide variety of trade names have been marketed as agents.
Construction of the formwork and preparation of the metal reinforcement for shells required particular care and accuracy because of their limited thickness.
Two typical recipes for the preparation of cold SBR are shown in Table 1. 3.