So the absorbing wavelength is selected,the operating condition optimized,and the quantitative and qualitative determination method on Polyoxin B by HPLC-DAD established.
This research discovered that soil pondage of level terrace were less than fallow sloping filed because of crops’ absorbing and using, and evaporation.
Ridges on achene surface in Senecio and Taraxacum are useful for absorbing small particles or control-ling surface temperature.Spinule on achene of Taraxacum may be fit for epizoochore.