本刊８１年第５期刊登《机床导轨精度标注方法的探讨》（简称《探讨》）一文后，收到一些读者来信，对文中的某些观点提出了不同看法。现将部分来信摘要发表。《探讨》一文关于不能把角值和线值允差混淆的基本观点还是正确的，但有不妥之处。通过大家认真讨论会有助于澄清一些模糊概念。 After the publication of the article entitled “Discussion on the Method of Annotating the Precision of Machine Tool Guideways” (the “Discussion” for short), we received some letters from readers and put forward some different views on some of the points in the article. Now part of the letter summary published. The basic idea of ​​the “exploration” on the inability to confuse angular and linear tolerances is still correct, but there are pitfalls. Through serious discussions, it helps to clarify some vague concepts.