Conclusion Low cervical collar curved incision is a safe and effective approach in the treatment of benign thyroid goiter. Moreover, it has a certain cosmetic effect.
结论颈前低位弧形切口治疗良性甲状腺肿物安全、有效，且具有一定的美容效果。
2
In this paper, the effects of chemical composition of the steel for oil drill collar on its properties were studied and the heat treatment process were optimized.
研究了石油钻铤用钢的化学成分及其对性能的影响，并优化了热处理工艺。
3
Placebo and treatment moxibustion pillars were made by affixinga moxa cone onto a special collar base.