Conclusion: Reversible oviduct block contraception is a new method, its blocks being unlikely to drop out; safe and reliable, with good reversibility and high renewal rate of pregnancy.
结论：输卵管置管可复性节育术方法新颖，不易脱落，安全可靠，可复性好，复孕率高。
Conclusion: the method of cerumen's being taken out by nerve block anaesthesia is simple, easy to master and is of positive efficacy.
结论：神经阻滞麻醉控制耵聍取出的方法简便，操作易掌握，疗效肯定。
By means of block structure grid and second-order zonal solver method, the research on supersonic inlet performance of solid rocket ramjet assisted range projectiles was carried out.
采用块结构网格与二阶精度流场分区求解技术，对固体火箭冲压发动机增程弹丸超声速进气道特性进行了深入研究。
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