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This paper presents an experimental investigation and a theoretical analysis of cavitation control by aeration and its c......
This study analyzes the biotransformation of earthworms on K in potassium-bearing mineral powder (PBMP) under different ......
Dividend taxation is an important component of investors’ taxes and has attracted the attention of policymakers and fin......
Although it has been known that γδ T cells may play an important role in the immune response to infection of Mycobacte......
[Objective] To study the factors influencing the callus induction of Polygala tenuifolia Willd., so as to establish call......
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通过对北京市现有混凝土配制技术的调研,分析了现有配制技术存在的问题.在此基础上对混凝土配制技术进行了改进,研究了人工砂、矿......