Methods: Test 1. the phenolphthalein excretion method of mices trachea.

方法: 小鼠气管酚红排泌法、家鸽气管纤毛运动法、小鼠氨水引咳法.

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The mystery of the homing pigeon is in how it navigates and how it finds home.

家鸽的神秘之处在于它怎么飞,怎么找到家的.

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Objective : To study the effect of 4 - AP on the le ft ventricular outflow tract in pigeons.

目的: 探讨4-AP对家鸽左心室流出道组织动作电位的影响.

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