用正电子湮没技术研究在聚四氟乙烯辐照接枝过程中的自由体积与正电子湮没寿命谱的关系。
The positron annihilation technique was applied to study the relation between relative free volume and irradiated graft for PTFE.
用正电子湮没技术研究在聚四氟乙烯辐照接枝过程中的自由体积与正电子湮没寿命谱的关系。
The positron annihilation technique was applied to study the relation between relative free volume and irradiated graft for PTFE.
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