Prevenion

基本解释

Conclusion Krypton laser photocoagulation is obviously effective on regression of neovascularization and prevenion of vitreous hemorrhage in retinal vein occlusion.
结论氪激光光凝术对视网膜静脉阻塞新生血管的消退及预防其玻璃体积血具有显著疗效。
The paper analysed damaged condition and causation of the light-type abutment of small bridges and culverts,and provide with prevenion measure based on investigation and study.
本文分析了小桥涵轻型桥台损坏情况及其产生原因，通过调查研究提出了几种防治措施。
direct general prevenion
直接一般预防