Friction resistance can be greatly reduced because no slide way is arranged.

而且其结构可以没有滑道大幅度的减少摩擦阻力。

youdao

Documentary: visual presentation (such as a video, slide show, or computer project) no more than 10 minutes long.

纪实作品：不超过10分钟的视觉展示，例如播放视频，幻灯片或者演示计算机程序。

youdao

When objects are left at what you think is at rest with no external agency acting on them, they all slide back towards the rear end of the plane.

当物体掉在地上，你认为它们不受外力作用，保持静止时，它们却朝着飞机的尾部滚去。

youdao

Because we find in that plane, when objects are left at what you think is at rest with no external agency acting on them, they all slide backwards towards the rear end of the plane.

因为我们发现,在飞机上,当物体掉在地上,你认为它不受外力作用,应该保持静止时,它却朝着飞机的尾部滚去

耶鲁公开课 - 基础物理课程节选

But to him there had been no slide.

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And it's part of the determination never to let anything slide, no matter how minor.

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