Another method of observation with intervention is field experiment. What is a field experiment?

另一种干预观察是现场实验。什么是现场实验？

The essential difference between field experiments and other observational methods is that researchers have more control in field experiments.

现场实验和其他观察方法的本质区别在于，现场实验中研究人员有较大的控制权。

The field experiment represents the most extreme form of intervention in observational methods.

现场实验的干涉形式是所有观测方法中最极端的。

Observation with intervention can be made in at least two ways, participant observation and field experiment.

干预观察可以通过至少两种方式进行，参与性观察和现场实验。

In a field experiment, Dowdy and his colleague William Conner filmed how five different species of tiger moths responded to bat attacks.

在现场实验中，道迪及同事威廉·康纳拍摄了五种不同种类的虎蛾面对蝙蝠攻击时的反应。

If this quotient is exceeded, the manufacturer is obliged to carry out a field experiment under realistic conditions to prove that the product is not harmful.

如果超过这个商数，制造商就有义务在实际条件下进行现场实验，以证明其产品是无害的。

When an observer controls one or more conditions in a natural setting in order to determine the effect on behaviour, this procedure is called field experiment.

观察者控制自然情境中的一个或多个条件，以确定对行为的影响，这个过程称现场实验。

In another field experiment, a floating garden was installed above a sand bank, to explore if the roots could help stabilize already accumulated sand, and collect more.

在另一个实地实验中，在一个沙洲上安装了一个浮动花园，以探索植物的根系是否有助于稳定已经积累的沙子，并收集更多的沙子。