这个手势模仿的是嘴巴的闭合。将四只手指竖直并拢并向大拇指方向闭合即可。

This gesture mimes the closing of the mouth. Hold the fingers straight and then close them against the thumb.

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将四只手指竖直并拢并向大拇指方向闭合即可。

Hold the fingers straight and then close them against the thumb.

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这些容器组件的闭合表面可以构造成它们基本上与从放射性材料发出的射线的局部方向完全成角度。

The closure surfaces of these container assemblies may be configured such that they run substantially entirely at an Angle to a local direction of radiation emanating from the radioactive material.

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