twolevel

常见例句

• Also known as anti-sticky is business card printing and membership card making letoff the upper and lower twolevel film-cards and membership cards make surface adhesion to the back of another level.
  也称不正粘，是在制卡和会员卡制息播卷的上下两层薄膜间制卡和会员卡制息背粘附到另一层的背背。
• identical twolevel atoms
  等同双能级原子
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