Experimental measurements were performed in a low speed wind tunnel for both original and modified turbine LGV's which are used in turbofan engines under different operating conditions. 在低速风洞上,对某型弹用涡扇发动机涡轮低压导向器原型和改型进行了变工况条件下的详细流场测量。
A Study of New Chrome-Free Lignosulfonate Viscosity-Reducing Agent LGV 新型无铬木质素磺酸盐降粘剂LGV研究
Results Patients with the blood stream of LGV away from the liver were more liable to esophageal variceal bleeding than those with the blood stream of LGV to the liver ( P < 0.01). 结果胃左静脉呈离肝血流的患者中发生食管静脉破裂出血者多于向肝血流患者,差异有显著性意义(P<0.01);
The experiment results in new prototype indicate that the above method improves LGV's travel precision obviously, and is expected to be used in real LGV. 在新的模型车上的实验结果表明,这种方法明显提高了车的运行精度,可望用于实际的LGV。
Conclusion The determination of blood flow direction and inner diameter of LGV through colored Doppler sonography can predict the risk of esophageal variceal bleeding. 结论彩色多普勒测定胃左静脉血流方向、内径能预测食管静脉曲张出血。
Method: The pain induced by thermal radiation, relieved by prolonging the acupuncture analgesia time, the exocytosis was observed and recorded under the electron microscope. 方法:用辐射热致痛、针刺镇痛,并延长针刺时间,电镜下观察、记录了LGV于突触部位的胞吐。
This paper introduces the viscosity-reducing ability of new viscosity-reducing agent LGV in drilling fluid and preliminarily inquires into the action mechanism of LGV. 本文介绍了新型降粘剂LGV在钻井液中的降粘能力,初探了LGV的作用机理。
The relationship among the reaction temperature and the intrinsic viscosity, the adsorption properties, the hydration and salt-resistant properties, the thinning properties of LGV samples are discussed. 本文对LGV产物的合成反应温度与其特性粘度吸附性能、水化耐盐性能、降粘性能的关系进行了探讨。
Conclusion: LGV may be involved in pain regulation by releasing their contents into the synaptic cleft. 结论:LGV可能通过于突触部位的胞吐参与了痛的调节过程。
Objective To determine left gastric vein ( LGV) blood flow dynamics ( vein diameter, blood flow speed, quantity, and direction) through colored Doppler sonography, and evaluate its value in predicting esophageal variceal bleeding in patient with liver cirrhosis complicated by portal hypertension. 目的通过彩色多普勒测定胃左静脉内径、血流速度、血流量、血流方向等指标,探讨其预测食管静脉曲张出血风险的价值。
The properties of chromium-free lignosulfonate LGV in relation to its synthetic reaction time 合成反应时间对LGV无铬木质素降粘剂性能的影响
Lower average molecular weight of LGV samples was unfavourable for the adsorption and hydration. 平均分子量太小,不利于产物的吸附与水化,平均分子量太大。
The reaction temperature should be controlled in order to make LGV samples have proper average molecular mass. 合成时应对此进行严格控制和调整,使LGV产物具有合理的平均分子量分布。
The conclusions and suggestions are as follows: ( 1) The reaction temperature affects the properties of adsorption, hydration and thinning by affecting the average molecular mass of LGV samples. 研究表明:反应温度主要是通过影响LGV产物的平均分子量大小进而影响其吸附、水化、降粘性能;
Therefore, endoscopic findings combined with the LGV hemodynamics showed important value in predicting variceal bleeding in patients with esophageal varices. 内镜检查联合应用胃左静脉血流动力学指标可能对预测食管静脉曲张出血有重要价值。
The behaviors of low gate voltage ( LGV) and peak substrate current ( Isub, max) stresses are studied in ultra-short and ultra-thin LDD NMOSFET. 对超短超薄LDDnMOSFET中的低栅压(LGV)和最大衬底电流(Isub,max)应力特性进行了研究。