controlled experiment
Longman Dictionary of Contemporary English 5++LDOCE 5++conˌtrolled exˈperiment noun [countable] TEST/EXPERIMENTa scientific test done in a place where you can control all the things that might affect the test 受控试验，控制性实验 a controlled experiment to determine the effects of light on plant growth 测定光照对植物生长的影响的一次受控实验
Examples from the Corpus
controlled experiment• This has not yet been measured by a properly controlled experiment.• Two of the four specimens known to be infected with M tuberculosis were positive in the controlled experiment.conˌtrolled exˈperiment nounChineseSyllable
scientific can where Corpus a a done place test in you control
controlled experiment
conˌtrolled exˈperiment
noun [countable]
a scientific test done in a place where you can control all the things that might affect the test:
a controlled experiment to determine the effects of light on plant growth
conˌtrolled exˈperiment
noun [countable]a scientific test done in a place where you can control all the things that might affect the test: