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A Study on Change of CD8+ T Cells and its Clinical Significance in HBV-positive Chronic Hepatitis
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作者 shenmin ChenSheng-liang CaoZhi-jun 《胃肠病学》 2000年第B08期121-122,共2页
关键词 CD8+T细胞 HBV 临床作用 慢性肝炎 消化系统
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Exploration on the Site Quality Management of the Construction Unit in the Construction Stage
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作者 shenmin 《外文科技期刊数据库(文摘版)工程技术》 2022年第6期128-132,共5页
With the prosperity of the market economy and the maturity of the technological system, the pace of urbanization in China is accelerating, the quality of life of residents is improving and the income level is rising, ... With the prosperity of the market economy and the maturity of the technological system, the pace of urbanization in China is accelerating, the quality of life of residents is improving and the income level is rising, which not only drives the development of regional economy, but also increases the burden on the transportation system. As a means of large traffic volume and fast access, the subway has won the favor of many municipal projects. This paper focuses on the current situation of subway engineering construction, and comprehensively uses scientific research methods such as case analysis and literature investigation to deeply explore the on-site quality management measures from the aspects of system, process and environmental protection. 展开更多
关键词 construction engineering construction site quality management
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