The explanatory notes of this ancient article are of great help to the reader.

这篇古文的注释给了读者很大帮助。

I have some questions about the explanatory notes here.

我对这里的注解有一些疑问。

I use this kind of explanatory text extensively in my thesis.

我在论文里大量使用了这种说明性文字。

There are explanatory notes with the diagram.

图表附带说明注释

These statements are accompanied by a series of explanatory notes.

这些声明附有一系列的解释性注释。

There are explanatory notes at the back of the book.

书后有注解。

I hope the graphs on the following pages are self-explanatory.

我希望以下几页图表能一目了然。

Most of these are probably self-explanatory, like addition, subtraction, multiplication and division.

其中大多数可能都是不言自明的，比如加法、减法、乘法和除法。

After the furore which greeted our first report I felt pusillanimously that we should excise this explanatory passage.

在我们的第一份报告引起骚动之后，我有些胆怯地觉得我们应该删去这段解释性的文字。