Fig. 2From: Approaches being used in the national schistosomiasis elimination programme in China: a reviewStructure diagram (a) and working field of the machine simultaneously integrating mechanized environmental cleaning and automatic molluscicide treatment (b). 1, tractor; 2, vegetation-pressing plate; 3, automatic molluscicide-releasing device; 33, comb-like molluscicide spraying retainer; 4, plough machineBack to article page