High pressure vessel with hemispherical head thinner than cylinder wall is a new type of vessel which consists of sealing device, cylinder, hemispherical head and reinforcing ring.

半球形封头壁厚与筒体壁厚不相等的高压容器是由端部密封装置、筒体、半球形封头和加强箍等组成的一种新结构容器。

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He said youngsters have a higher risk of head injury than adults because their skulls are thinner and less able to absorb shock.

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