论文部分内容阅读
The Preliminary Study on the Converting Measures between the Four Waters in Wet and Low-lying Farmla
【出 处】
：
东北农业大学学报（英文版）
【发表日期】
：
2003年1期
其他文献
Based on Partial Least-squares Regression to Build up and Analyze the Model of Rice Evapotranspirati
During the course of calculating the rice evapotranspiration using weather factors,we often find that some independent variables have multiple correlation.The p
The researches through Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM) indicated that Sphaerotheca pannosa directly intrude in the
我县2010年共死亡孕产妇3例,全部为产后出血死亡.通过对3例孕产妇死亡经过的追踪调查和死亡原因的分析,认为我县的产科建设有待加强,产科人员的技能有待提高,需卫生行政主管
西咪替丁为组胺H2受体阻滞剂,能抑制组胺或五肤胃泌素刺激引起的胃酸分泌,临床适用于治疗胃及十二指肠溃疡、上消化出血等症.近年来,发现西咪替丁能阻断T细胞抑制因子所致的
目的 探讨小儿心内直视术后呼吸道护理要点,加强心脏外科术后患儿呼吸道管理.方法对60例心脏术后患儿呼吸道管理资料进行分析,从术后气管插管、机械通气、拔管后呼吸道的护理
腰椎间盘突出症是临床常见病,是腰腿痛最常见的原因之一.随着医学影像学的发展,诊断手段不断增多,目前主要依靠 CT定位、定性分型, X线腰椎平片仍有重要价值.本文对我院经手
Performance and Nutrient Utilization of Layers Fed Diet Supplemented with Microbial Phytase and Cell
A 31-week feeding trial was conducted to investigated the effects of dietary supplementation of microbial phytase and cellulase on performance,nutrients utiliza
目的 研究海马内环境稳态在抑郁症中的作用.方法 20只雌性Wistar大鼠分为对照组、模型组.ELISA法检测血清皮质醇、雌二醇,光镜和电镜观察海马CA3区形态学变化,免疫组化法检测
随着社区医疗卫生服务在全国推广普及并且日益得到重视,作为社区医疗保健工作显得尤为重要.通过各种保健方法预防疾病是社区医疗保健工作内容之一,而健康教育是做好社区医疗
Research on Mechanism of Overcurrent and Overvoltage When Contactless Tap Changer Switch Regulates V
Analyzes the mechanism of overvoltage when contactless tap changer switch which is applied in distributing transformer converted directly.When the device conver