For example, he bravely pulled critical wire through narrow pipes, sparing the soldiers a dangerous three - day digging task. (dogster.com)
The motors could be used in machines to scour away plaque from the inside of clogged arteries near the heart, or to power miniature probes for inspecting narrow pipes and tubes in manufacturing plants. (newscientist.com)
There's an ocean of money trying to get into the crypto space that can't get in through the narrow pipes of exchanges constrained by KYC. (acting-man.com)