The phrase "are not repeatable and" is correct and usable in written English.
It can be used in contexts where you want to indicate that something cannot be repeated or done again, often in discussions about processes, events, or actions.
Example: "The results of this experiment are not repeatable and must be interpreted with caution."
Alternatives: "cannot be repeated and" or "are not reproducible and".
The racetracking strength is not repeatable and may vary from one injection trial to next.
It was observed, however, that coherent single-pulse mode-locking was not repeatable, and optimisation of the fitness function led to a tendency towards the emission of noise-like pulses, highlighting the need to implement a more sophisticated fitness function25.
The experiment was not repeatable and sometimes failed to produce any phenomena.
However, they also reported that over 15% of the RAPD bands were not repeatable and the contribution of non-cladoceran DNA (microbes, algae, symbionts) to the patterns with anonymous RAPD markers is unknown.
This method is not repeatable and does not scale to large numbers of alignments.
For this particular set of experiments the largest reduction in power was seen for an unfilled fiber, however, the rate of reduction was not repeatable and no consistent correlation between filled or unfilled fibers was observed.
So, one has to be wary of claims by people involved that the different studies "line up". If the studies aren't solid and are not repeatable, the fact that they "line up" means nothing.
In addition, the periods of time between the studies are not integrated with each other and are not repeatable, making it difficult for rangeland managers to detect rangeland degradation in a consistent manner.
Moreover, if, because (b) and (c) are not repeatable, an omnipotent agent is not required to bring about (b) or (c), then for the same reason, that agent is also not required to be able to bring about impossible or necessary states of affairs.
