伸舌是舌伸出口外，收缩困难，或不能回缩口内的病状名。
到达位置后，轻轻向后仰头，伸舌到稍微超过下唇。
Once you're in position, slightly tilt your head back and extend the tip of your tongue just past your bottom lip.
本文以滑移机理研究“柱出口效应”失效的机制，以探讨伸舌色谱峰和拖尾色谱峰的形成机理。
The invalidation of the effect of column outlet was researched with slip mechanism, for the investigation on the cause of forming tailing peak and leading peak.
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