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(一)《西北工业大学学报》的学术面貌似可定性定量地用重要的Ei主题词两年出现的个数及每个主题词出现的篇数来描述。两年出现了577个Ei主题词,其中192个是21世纪才出现的。重要的Ei主题词似为29个21世纪才出现的及20个2000年以前已出现的,29个词每个词都在4篇以上出现,20个词每个词都在20篇以上出现。(二)29个在4篇以上两年《西北工业大学学报》论文出现的21世纪主题词
(1) The academic appearance of “Journal of Northwestern Polytechnical University” may be described qualitatively and quantitatively by the number of important Ei occurrences in two years and the number of occurrences of each occurrence. Two hundred years there have been 577 Ei keywords, of which 192 appeared only in the 21st century. Important Ei keywords seem to appear in twenty-first twenty-first Century and twenty Appears before 2000, 29 words appear in more than four words, each of 20 words appear in more than 20 words. (B) twenty-nine in the 4 years and above two years “Journal of Northwestern Polytechnical University” appeared in the 21st century thesaurus