The density measurement technology of foam material with low atomic number was established by low energy X-ray radioscopy .
采用低能X射线对低原子序数泡沫样品进行透射照相，以胶片作为记录介质，对材料密度进行测量。
The density measurement technology of foam material with low atomic number was established by low energy X-ray radioscopy .
采用低能X射线对低原子序数泡沫样品进行透射照相，以胶片作为记录介质，对材料密度进行测量。
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