convectionn.(热的)对流
convection terms对流项
convection dryer对流干燥器
convection field对流场
convection pipes对流管
convection drier对流式干燥机
convection heater对流加热器,对流取暖装置
convection column对流柱
convectional rain对流雨
convection effect对流效应
convection baffle对流挡板