We arranged the chairs at one-meter intervals.
This bus comes at ten-minute intervals.
space character; whitespace
Computing use for a space or whitespace character; in everyday Japanese, 空白 or スペース is often clearer, while 間隔 may appear in technical or standards-style wording, especially in compounds such as 間隔文字.
The specification explains that space characters are treated as separators.
Trains come at five-minute intervals.
It's better to plant the seedlings with some space between them.
The runners are running at regular intervals.
The seats are spaced so closely that it's hard to sit down.
full-width space
character spacing