The phrase "a single line through" is correct and usable in written English.
It can be used when describing a visual element, such as a line that crosses or marks through something, often in the context of editing or indicating deletion.
Example: "To indicate the error, please draw a single line through the incorrect word."
Alternatives: "a line crossing" or "a line marking through".
"I suspect the best thing is to reroute the train line through Tavistock and keep a single line through Dawlish.
The sample was illuminated over a 10 mm×10 mm area, and the linear camera records a single line through this area.
The modified Scherrer equation is advantageous for decreasing the sum of absolute values of errors, ∑(±Δln β), and producing a single line through the points to give a single value of intercept ln kλ/ L) [ 22].
For a given angle θ, there is a single line through the pole whose angle with the polar axis is θ.
defer.add img); [s] Example: Strikethrough Use: Puts a single line through the text, generally used to suggest that something is no longer applicable.
The alternative was the so-called S option, that would be have involved a single line going through the Pennines.
In model houses, you can only have a single line go through them, so we cut it in half and put the halves 20 feet apart so people could go and see the living room, the kitchen, and all.
In "Her Husband," Ms. Middlebrook follows what she calls "a single line of inquiry through the maze of Hughes's life as he enters into the partnership, struggles and prospers in it, loses the partner but not the relationship, and turns the marriage into a resonant myth".
Before writing a single line of code, Guasti resolved to work through through classic 2D Metroid titles, to get a handle on how they played.
Really disastrous with the poor girl barely able to make it through a single line without messing up.
Like a lot of poor singers, he could barely get through a single line of the song without throwing in tons of runs and trills.
