The main unit from another side.

另一边的主发电机组。

And there is another side.

另外一面的确存在。

Now there is another side to this.

现在讲到这还要提另一方面。

Yet there is another side to the story.

但也有故事的另一面。

There is another side to it, of course.

当然，也有不好的一面。