The selections differ only in the tolerance as applied to space width and tooth thickness.

选择不同的公差在“弧齿槽宽”和“弧齿厚”中应用。

youdao

Machining Tolerance is the permissible variation in actual space width or actual tooth thickness.

加工公差是花键的实际齿槽宽和实际齿厚的允许的变动量。

youdao

Machining Tolerance (m) is the permissible variation in actual space width or actual tooth thickness.

加工公差(m)：加工公差是花键的实际齿槽宽和实际齿厚的答应的变动量。

youdao

And if you don't put a point but just put a number, this specifies the width of space that will be used by the number you're inserting there.

如果你不用点而只用数字，这个指定的长度是由,你插入的数字决定的。

哈佛公开课 - 计算机科学课程节选

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