Rhetorical Characteristics of English for Science and Technology

English for Science and Technology (EST) is noted for the requirement of brevity, logic, formality, accuracy and precision. However, it also contains a large proportion of rhetoric devices. This paper is going to explore rhetoric characteristics of English for Science and Technology (EST) from the perspective of syntactic devices, lexical devices, phonetic devices and figures of speech. It is hoped that the research can promote the readers' understanding of EST and be of help for the efficiency of the exchange of the information and spreading of scientific facts and laws.