Multiple endocrine neoplasia type 1(MEN1) is a rare hereditary syndrome known to predispose subjects to endocrine neopla......

Damping plates have been used for truss spars in gulf of Mexico to reduce the heave motions. The plates are usually perf......

高师视唱练耳教学的教法研究,是一个长期的课题,因为音乐形象的准确表达,是建立在专业素质与专业技术与学养的合理结构上的.只有实......

在根据现场资料分析研究的基础上,结合河南油田稠油油藏特点,对影响稠油出砂冷采技术发展的4个主要问题进行了探讨.结果表明:稠油......

国内现行的射孔作业计价方法存在着适应性差、可操作性不强等缺陷,不能满足射孔新技术发展的要求和射孔业务市场化定价的需求。为......

This report describes a young female in her secondtrimester of pregnancy with known ulcerative colitis onmaintenance med......

储层在钻井、完井、采油、增产和修井的各个作业环节都有可能受到不同程度的污染和伤害,尤其是与地层配伍性差的各种入井液,将会造......