The phrase "a length on a" is not correct and does not convey a clear meaning in written English.
It may be intended to describe a measurement or dimension related to something, but it lacks context to be usable.
Example: "The project requires a length on a specific dimension to ensure proper fit."
Alternatives: "a measurement of" or "a dimension of".
As they crossed the finish line, Commendable had a length and a half on Aptitude, who also ran second in the Kentucky Derby, and Aptitude had a length on Unshaded, who had to be treated with ice and cold water on the track because of heat exhaustion.
In javelin you run a length on track while wielding a javelin.
Leave enough of a length on the loop to form a beak, as shown in the image above.
Madison originally proposed a one-year length on such a bar.
As she crossed the wire to applause for a powerful solo performance, she had nine lengths on Conquistadoress, who had a length and a quarter on Rare Opportunity.
And you may use only a single focal length lens or a single focal length on a zoom lens.
Then things get claustrophobically bleak in the signature Davies manner, but subtly and movingly so – here's a director who can make your heart stop just by holding at length on a shot of a bouquet of flowers.
We prove that if the length function is chosen to be a word length on a group of polynomial growth, then its Schwartz cohomology is canonically isomorphic to the usual group cohomology with complex coefficients.
Lower design: A young woman (right) lies full length on a sofa; next her in the opposite corner of the sofa is an elderly man in regimentals, also asleep.
For instance, one group of curves, the conchoids (from the Greek word for "shell"), are formed by marking off a certain length on a ruler and then pivoting it about a fixed point in such a way that one of the marked points stays on a given line; the other marked point traces out a conchoid (see the figure).
