To the extent that there are significant regulatory or technology changes over time, which would influence per-vehicle emissions as well as fleet composition, our analyses would become progressively more uncertain over time.
This is problematic as it means that a progressively smaller proportion of the population represents the majority, and it is uncertain how survey results are affected.
Background: The non-response rates in surveys are increasing which is problematic as it means that a progressively smaller proportion of the population represents the majority, and it is uncertain how health survey results are affected.
First, participants were asked to classify all aircraft as they progressively appeared on the radar screen according to three threat levels (non-hostile, uncertain, and hostile).
The first insult was a detached retina, followed twenty or so years later by glaucoma, which progressively made the daily commute from his apartment, in the East Sixties, to his office in the East Fifties, an uncertain undertaking.
But progressively developing human embryos were not drawn until around 1800, when they helped to challenge traditional understandings of pregnancy as an uncertain and precarious state of which the woman concerned had privileged knowledge.
2. Add weight progressively.
Soft, progressively snowy pictures.
It got progressively worse".
Compulsion becomes progressively harder.
