英语释义
1. an experiment in which all the variable factors in an experimental group and a comparison control group are kept the same except for one variable factor in the experimental group that is changed or altered
… few controlled experiments have been formally conducted by an impartial organization to prove or disprove the claims.
— Noel Vietmeyer In the next few years, non-university researchers will run controlled experiments with the fungi on mosquitoes in Africa and locusts in China.
— Carrie Wells … Bat Conservation International conducted a controlled experiment in which some of the turbines were temporarily shut down during specific wind conditions.
— Kirk Swauger — compare control experiment