"insecticide"的搜索结果

demonstrating ddt hand spraying equipment while applying the insecticide

标签: demonstrating,ddt,hand,sprayin 浏览: 13

airplane as it flies over a texas city after dispersing its payload of insecticide

标签: airplane,as,it,flies,over,a,te 浏览: 18

aircraft as it was spraying insecticide in order to help eliminate populations of possible disease causing mosquitoes

标签: aircraft,as,it,was,spraying,in 浏览: 19

stearman bi plane is spraying an insecticide during malaria control operations in savannah ga

标签: stearman,bi,plane,is,spraying, 浏览: 13

men in a village in india spraying the insecticide ddt dichlorodiphenyltrichloroethan

标签: men,in,a,village,in,india,spra 浏览: 13

insecticide spray operators must wear full gear with face mask overalls boots gloves and a hard hat

标签: insecticide,spray,operators,mu 浏览: 22

man is returning home with his familys allocation of long lasting insecticide treated mosquito nets

标签: man,is,returning,home,with,his 浏览: 16

operator spraying the walls of a house with insecticide

标签: operator,spraying,the,walls,of 浏览: 19

fighting malaria as insecticide spray operators

标签: fighting,malaria,as,insecticid 浏览: 17

trained insecticide sprayers prepare to deploy in the village from mosquitoes during the rainy season

标签: trained,insecticide,sprayers,p 浏览: 15

young village boys in mozambique observe a long lasting insecticide treated bed net during a demonstration

标签: young,village,boys,in,mozambiq 浏览: 14