改正液是由溶剂、粘结剂、遮光剂、分散剂所制成的误迹改正液，其特征在于所说的改正液在饱和烃混合溶剂及其溶解物的溶液中使用非极性遮光剂硫化锌。
他想发明一种不留痕迹的改正液的企图以失败告终。
His attempt at contriving a correcting fluid which leaves no marks on paper ended in failure.
收集必要的安装工具：柱切割器、柱螺母、垫圈、放大镜、打字机改正液。
Gather the necessary installation tools: you will need a column cutter column nuts ferrules a magnifying loop and typewriter correction fluid.
收集必要的安装工具：柱切割器、柱螺母、垫圈、放大镜、打字机改正液。
Gather the necessary installation tools: you will need a column cutter, column nuts, ferrules, a magnifying loop, and typewriter correction fluid.
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