His experiment worked by showing volunteers pairs of photographs containing one or more objects from the five mental categories in question.
在实验中他给每个志愿者一对图片，其中包含了一个或多个属于那五种心理范畴的物体。
2
From various mental demands in product design, this article discussed rationale and practice method of psychological experiment and the application of experimental data.
从产品设计中的各种心理需求出发，探讨了心理学实验的理论基础和实践方法，以及基于实验数据的设计应用。
3
There is no disease, bodily or mental, which adoption of vegetable diet and pure water has not infallibly mitigated, wherever the experiment has been fairly tried.