Macroparticle multihole PTFE which is made for a new hydrophobic catalyst supporter is prepared by dissolving the reagent for hole.

本文叙述用溶出法制备作为疏水化催化剂担体的多孔大粒ptfe树脂。

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Several technical problems in arc source design, including arc mode, arc polarity, ignition mechanism and arc confinement and macroparticle reduction were discussed.

讨论了真空电弧沉积中弧源设计的有关问题，如电弧运行模式、电弧极性、点火方式、电弧的约束方式以及宏观粒子抑制方式等。

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Several technical problems in arc source design, including arc mode, arc polarity, ignition mechanism and arc confinement and macroparticle reduction were discussed.

讨论了真空电弧沉积中弧源设计的有关问题，如电弧运行模式、电弧极性、点火方式、电弧的约束方式以及宏观粒子抑制方式等。

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