Inter - line space (Interlinear space) : space between lines in text. Better known as Leading.

行间距：内文字行间的空位，亦称行隔。

youdao

To make revising easier, leave wide margins and extra space between lines so that you can easily add words, sentences, and corrections.

要想修改起来更容易，多留一些页边空白，行与行之间也要留出空白，这样你就可以轻轻松松地增加单词、句子和更正的内容。

youdao

Please leave a space between the lines for the necessary corrections.

在行与行之间要留出间隙，以便作必要的修改。

《新英汉大辞典》

"Because of the way people defend at scrums, with the greater distance between defensive lines, it should mean there's more space, hence the need to keep scrums squarer - so I see that as a positive, " he said.

BBC: Booth concern over law experiment