"one in which" is a valid phrase in written English. It is used to refer to specific objects or ideas, and is usually followed by a noun phrase. For example: "She chose the painting, one in which a woman was walking through a field of wildflowers.".
Thus, we focused on two versions of the model: One in which ultrasensitivity was dominant and one in which positive feedback was dominant.
One in which each American, in varying degrees depending on one's individual construct, can be proud.
One in which he works very hard?
There's one in which Walt dies and one in which he lives.
But one in which the main voice has been stilled.
(Maths being one in which boys still often outperform girls).
The others, one in which she'd borne children, were longer".
Ludwig does not simply clarify my doubts with English writing, it enlightens my writing with new possibilities
Simone Ivan Conte
Software Engineer at Adobe, UK