seated position

By analyzing for risk and feasibility of open hole well testing, actual experiences and lessons applied in Shengli oilfield have been summarized systemically and study on mud, setting site, down hole, string structure and work system has been done, a general way and technical point has been suggested which helps to push forward this tech and increases economic benefit.

通过对中途裸眼测试风险和可行性分析,系统总结胜利油田多年测试实践的经验教训,分别对泥浆、坐封位置、井底、管柱结构及测试工作制度等方面进行分析研究,提出中途裸眼测试的一般方法和技术要点,有助于推进该工艺进步,提高经济效益。

According to angle measuring concept of Helmet Mounted Sight(HMS) in fire control electro optic aiming system on a certain type of airplane, and slant range data of its laser range finder, a mathematic model for correcting INS heading and position coordinates is presented, and its application is discussed further.

根据某型飞机火控光电瞄准系统中头盔瞄准具的测角原理和激光测距机的斜距信息 ,提出了用其校正惯导航向和位置坐标的数学模型 ,并对其应用作了进一步的讨论。