In a second experiment, the researchers tested the Wolf pups to determine whether they would follow the gaze of a person as she stood staring at a spot on the other side of a low wall.

在第二项实验中，研究者们希望了解当人的注视点在一堵矮墙后面时，狼崽是否还会追随人的视线。

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Methods Laboratory experiment and simulated on the spot experiment.

方法实验室和模拟现场试验。

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The value of additional coefficient of raft roughness is established through the comparative analysis of raft prototype resistance measurement on the spot and relevant model experiment.

通过木排原型阻力的现场测试与相应的模型试验分析对比，确定了木排粗糙度附加系数的数值。

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