controlled experiment
noun/kənˌtrəʊld ɪkˈsperɪmənt/
/kənˌtrəʊld ɪkˈsperɪmənt/
- a scientific experiment in which only one condition is changed in each of several tests in order to find out what effect that condition has on the results of the experiment
对照实验：一种科学实验，在该实验中，几个测试中的每一个仅改变一个条件，以便找出该条件对实验结果有何影响 - Controlled experiments show how shore crabs of different sizes respond to ship noise.
对照实验显示了不同大小的岸蟹对船舶噪音的反应。
- Controlled experiments show how shore crabs of different sizes respond to ship noise.