Methods Perspectivestudy was performed to analyze the factors exerting impact on SSIs and to identify the high-risk factors.
方法通过前瞻性监测分析对普通外科手术部位感染影响的因素，筛选出手术部位感染的高危因素。
2
This article is a perspectivestudy on its physical, chemical, biological properties and the immunochemical detecting methods.
本文综述了桔青霉素的物理、化学和生物学特性及其免疫学检测方法研究进展。
3
This thesis, through the multi-perspectivestudy of English class teaching attempts to point out that in teaching by dialogue, teachers' class role should be complex.