针对合金篦条材料表面进行等离子渗碳技术的试验研究和渗层的耐磨性能实验分析。
Experimental study of plasma carburization technology and analysis of wear test of carburizing layers are done aimed at alloy bar grate material surface.
本文通过几年来大量的实验分析和现场试验，总结出气水两相在井筒内主要存在气泡流、柱塞流、环膜流、霉状流。
Based on a lot of experimental analysis and field tests, the states of bubble flow, plunger flow, ring film flow, fog flow lied in gas-water phases in wellbore are summarized.
针对实验室现有的设备，分别对单点定位误差和区域定位误差进行试验、分析，对不同GPS使用精度进行比较。
Based on the facility the lab owned, we analyze single error and region error and compare different GPS precision.
应用推荐