One square millimeter of a gecko's footpad has 14,000 hair-like structures called setae.

趾上一平方毫米，有一万四千个毛发状结构叫刚毛。

The researchers also tested whether a gecko could latch onto the coating with its notoriously sticky footpads.

科学家还做了一项测验，看是否能够借它那著名粘行走在上述涂层上。

The LEM footpads are only, uh...uh, depressed in the surface about, uh, one or two inches.

登月舱底板只把表面压进去了一两英尺。

It is these tests of the prototype legs and footpads that can be seen in the JPL's Thursday video.

这些原型支腿和测试在 JPL 周四发布视频中被展示了出来。

On Thursday, the space agency released a video on YouTube showing prototypes of the planned Sample Retrieval Lander's legs and footpads being put through their paces at the Jet Propulsion Laboratory (JPL) in Southern California.

周四，航天局在 YouTube 发布了一段视频，展示了计划中样本检索着陆器腿和原型，这些原型正在南加州喷气推进实验室（JPL）进行测试。