以运动学的坐标转换理论为基础，对汽车方向管柱在高速碰撞试验中的位置和姿态进行了动态分析。
Based on kinematic coordinates transform theory, the dynamic analysis of position and gesture of the automobile steering hub column in the high-velocity collision test was made.
经现场试验及应用，该管柱性能可靠，满足水平井分段压裂要求。
After field experiment and application, the string shows reliable performance, which can meet the staged fracturing requirement.
经室内试验和现场试验应用证明，该工艺管柱技术先进，换层可靠，经济效益和社会效益明显。
The results of tests show that the technology pipe string is advanced and reliable and has an obvious social and economical benefit.
应用推荐