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本文研制了一台快速、精确测量材料放气性能的真空系统，对彩显管用石墨试样制备规范作了实验研究，并给出了国内外石墨试样放气总量的对比数据。
In this paper, a vacuum system is developed to measure the outgassing of material quickly and accurately. The preparation of graphite sample for color display tube is experimentally studied. The comparison of the total amount of outgassing of graphite sample is given.