Objective To investigate the age trend of the frontal QRS axis in a normal population and its effect on QRS-wave amplitude in the limb leads.
目的调查和评估正常人额面QRS电轴的年龄趋势以及对肢体导联QRS波振幅的影响。
Along with the growth of age and body, optic axis gradually lengthens to the normal.
随着年龄及身体的增长，眼轴逐渐加长，至而渐趋正常。
In the "axis age" of Chinese mythology, primitive ancestors created many well-known myths which have survived till now.
中国神话在其“轴心时代”，先民凭借原始的感性思维创造了无数著名神话，流传至今。
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