...化钨制碰撞环（Impact Ring）]或[碳化钨制均质阀座（Passage Head）,陶瓷制冲击头（Impact Head）,不锈钢制碰撞环（Impact Ring）]两种组合。 生产型：材质用全陶瓷制品比较多，也有用全碳化钨制和碳化钨包埋陶瓷的，需要根据实际 情况选用。
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Impact Ring Model 冲击环模型
PCH series ring hammer crusher is a kind of the impact of the rotor with ring hammer crusher.
P CH系列环锤式破碎机是一种带有环锤的冲击转子式破碎机。
This impact would have sprayed huge quantities of material into space, forming a ring around Earth similar to, but much thicker than, those that now adorn Saturn.
这次碰撞已将大量的物质散发到了太空，从而形成了环绕地球的光环，类似于那些现在装饰土星的光环，但是要厚得多。
An experimental study of inlaid circular ring under impact force on interior boundary is also conducted. The result shows that the stress is distributed in a limited scope.
文中还对内边界受冲击力作用的镶嵌圆环进行了动光弹实验，结果表明，应力分布局限在有限范围内。
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