The phrase "a one which" is not standard in written English and may sound awkward or incorrect to many readers.
It could be used in contexts where you are trying to specify a particular item or instance among others, but it is generally better to rephrase for clarity.
Example: "I am looking for a one which stands out from the rest in terms of quality."
Alternatives: "a specific one that" or "one that is".
The technology is based on a one which has been primarily developed for the treatment of combustion engine exhaust gases.
The method is tested on three numerical examples of non-isothermal CSTRs: (a) one which is oscillatory stable with strong resonant behavior, (b) one which is oscillatory stable with weak resonant behavior and (c) one which is nonoscillatory stable.
As a last indignity, the butchered warrior is subjected to his killer's cold epitaph: Though in this city he Hath widowed and unchilded many a one, Which to this hour bewail the injury, Yet he shall have a noble memory.
The first important consequence of Lemma 2, is that if the procedure FindMaxCliques(X) in Algorithm 1is replaced with a one which searches for cliques of bounded size, the algorithm is guaranteed, with high probability, to yield the same performance as the one with the original procedure, only now the complexity is polynomial in K.
An E. coli isolate that was consistently serum resistant and a one which was consistently sensitive were used as positive and negative controls respectively [22].
Buy a one which is the perfect size for you.
A year later she started construction on a new one, which was charred by the Woolsey fire.
"It's a new squad, a new environment and it's quite a positive one which is a good sign for us going into the season.
When choosing a necktie look for a striped one which is of a bright color.
He was convicted on a seventh one, which did not involve Granello.
A metal one is fine, or you can spend a little extra for a leather one, which is more durable and produces a better sound.
