与此相反，四个男人注视着相机镜头，没有微笑，除了眨眼和微弱的晃动之外并没有大的动作，看起来像被定住了一样，他们是如此安静，似乎无法在微风中站稳一样。

Instead, four men stare into the camera, unsmiling, not moving except for tiny blinks and sways. They look like they've been tranquilized, like they can barely hold themselves up against the breeze.

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本文介绍了在研制“弹道相机”时，一种新型竖轴系的结构设计、轴系晃动误差和配合间隙的分析计算。

This paper describes the structural design of a vertical shafting, analyses and calculates the wobble error and fit clearance in the developed ballistic camera.

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