【电学】反接制动（反馈制动）【运输】对流闸（再生闸）

counter-current water

counter-current

rotational little-chamber counter-current chromatography

counter-current multiplication mechanism【生理】

counter-current extraction decanter

trickle condenser with both cross-current and counter-current

counter-current trickle condenser

discontinuous counter-current immunoelectrophoresie