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CCTV节目 央视网

发布时间:2024-07-15
旋转楔形通道

data-id="" iid="">推进技术http://tjjs.ijournals.cn/tjjsen/ch/reader/create_pdf.aspx?file...[PDF]旋转楔形通道网页2017年2月12日 · 摘要: 为了模拟涡轮叶片尾缘冷却通道的流动换热特性,建立了带侧向出流的旋转楔形冷却通道的数值模型, 采用k-ω SST两方程模型研究了流动与旋转对于楔形通道内换热分布与不同出口冷气出流比例的影响。 在静止情况下, 由于沿程侧向的冷气出流, 换热沿程降低。而旋转压缩了通道顶部内侧区域的 ...

发布时间:2024-07-15
决策参考

发布时间:2024-07-15
FIT DocumentD\学报

data-id="" iid="">农业环境科学学报http://www.aes.org.cn/nyhjkxxb/ch/reader/create_pdf.aspx?file...[PDF]FIT Document(D:\学报-农环\农环2017\农环2017-1期\农环 ...网页2017年1月18日 · A total of 11 366 soil mites were captured on four sampling dates, of which 8373(74%)were Oribatida. The den原sity of soil Oribatida was SR4:13 774 per square meter, 15 fam ilies SR10:11 946 per s quare meter, 12 fa …

发布时间:2024-07-15
Pancake kidney when it is not a problem

data-id="" iid="">National Center for Biotechnology Informationhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6711276Pancake kidney: when it is not a problem - PMC网页2018年2月16日 · Pancake kidney is a very rare congenital anomaly involving complete fusion of medial renal parenchyma. The interface is devoid of any intervening septum. As described, the kidneys form a single lobulated mass in pelvic location. However, dual collecting systems are retained, and the shortened, anteriorly seated ureters enter the …

发布时间:2024-07-15

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