[ncl-talk] change the Y AxisString according to the example 'vector_5.ncl'

[grace]

Hi:
      All,I have write a script according to the example 'vector_5.ncl'(gsn_csm_pres_hgt_vector).
      I am wondering how to change the Y AxisString,because the default title and unit pattern is 'pressure(mb)'&'height(km)'.But I want to change it to 'pressure/mb'&'height/km',I am try to set 'res at tiYAxisString   = "Pressure/mb"',but it can only change one of them ,I can not find any information in the example script. 

 How can I slove the problem?
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