The paper studies squeezed cap of piercing plugs nose, failure mechanism of melting, influence factor and the process measure of lengthening the service life of plug.
研究了穿孔顶头鼻部压堆戴帽和熔化的失效机制，影响因素，提出了延长顶头使用寿命的工艺措施。
3
Turn your head, use nose plugs or try Coughlin's tactic - plug your nose by flipping your upper lip.