The phrase "a working and a" is not complete and lacks context, making it difficult to assess its correctness in written English.
It could potentially be used in a context where you are listing two related items or concepts, but it needs additional information to clarify its meaning.
Example: "We need a working and a backup solution for our project."
Alternatives: "a functioning and a" or "an operational and a".
A home made flow-through polypropylene cell (4.5 cm long × 0.8 cm diameter filled with glass marbles) with an effective inner volume of 0.5 ml containing a working and a counter electrode, both of glassy carbon and a Pt pseudo reference electrode was located in a flow injection manifold specially designed for the purpose of this work.
Additionally, given that this software uses yeast, chicken and human models, and have a working and a published version, data generated with each model and each version were analyzed.
Undergraduate respondents use the Library as a working and – to a lesser extent – social space.
These are compared for three distinct household occupancy patterns, corresponding to a working family, a working couple and a daytime-present couple.
The two cofounders then spent a year-and-a-half working on a prototype, while receiving advice from senior executives at Dropcam and GoPro.
In high school, Colin Levy spent a year-and-a-half working on a five-minute short film.
The two spent a year-and-a-half working on the documentary, which is currently streaming on Urban Movie Channel.
I guess the ideal would be a combination of remote working and a central office.
"Let me tell you something, I walk past this mosque every single day," said Adaobi Eachor, 34, a producer working, and a Christian.
Such a safe working and learning climate is a prerequisite to improved competence and performance (Edmondson 1999).
This was done in an embedded manner and generated a working, not a complete, understanding of the causal factors of disaster vulnerability that impact Emae communities.
