Conclusion Incision secondary healing, obesity and diabetes, elevation of intraabdominal pressure, the aged, the female, longitudinal incision and lower abdominal incision are etiological factors of incisional hernia. 结论伤口二期愈合、腹内压升高、肥胖和糖尿病、老年人、女性、纵型切口、下腹部切口等是腹壁切口疝的致病因素;
To realize the autonomous of master satellite and tributary satellite in forming with one master satellite and several secondary satellites, the relative range, range rate, azimuth and elevation were measured through microwave radar in this paper. 为实现主从式卫星编队飞行中心星与环绕星的自主定轨,采用微波雷达测量卫星间相对距离、距离速率、方位角和仰角。
Junior Secondary and primary school pitcher of the lower limbs more technical issues, mainly after the tread angle too large, the lack of elevation thigh, hip does not send the full, extended leg before riding tread angle too large, hand speed impact. 初中组与小学组投手的下肢技术问题较多,主要有后蹬角偏大,大腿高抬不足,送髋不充分,伸踏腿前蹬角偏大等,影响出手速度。