indicator-paper

常见例句

• Neutral reaction by litmus indicating paper.
  石蕊试纸呈中性反应。
• indicator paper of neutral thymol phthalein
  中性麝香草酚酞试纸
• indicator paper of phenol phthalein
  酚酞试纸
• indicator paper -reflecting apparatus method
  试纸-反射仪法
• His sooty hand smudged the paper.
  他被煤烟熏污的手把纸弄脏了。
• All its stock in trade is glossy paper backs.
  该店的全部现货是光面的平装书。
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