4Law S E. Agricultural electrostatic spray application:a review of significant research and development during the 20 century [ J]. Journal of Electrostatics,2001, 51 ( 2 ) :25 - 42.
5Laryea G N. Development of electrostatic pressure-swirl nozzle for agricultural applications [ J]. Journal of Electrostatics, 2003,57 ( 2 ) : 129 - 142.
6Maskia D, Durairaj D. Effects of electrode voltage, liquid flow rate, and liquid properties on spray chargeability of an air- assisted electrostatic-induction spray-charging system [ J ]. Journal of Electrostatics ,2010,68 ( 2 ) : 152 - 158.
7Law S E, Bowen H D. Effects of liquid conductivity upon gaseous discharge of droplets[J]. IEEE Transactions on Industry Applications, 1989,25 (6) : 1 073 - 1 080.