The phrase "abrupt jump" is correct and usable in written English.
It can be used to describe a sudden or unexpected change in a situation, trend, or data point.
Example: "The graph showed an abrupt jump in sales during the holiday season, surprising analysts."
Alternatives: "sudden increase" or "sharp rise".
Mr. Lorenz preferred not to use doubles or abrupt jump cuts.
Yet another abrupt jump was made when 19th-century French silver, porcelains and bronzes followed on the heels of Far Eastern art.
In the final act, there's an abrupt jump of almost two decades, and suddenly everyone's old, dead or about to be beheaded.
Seeking to explain the abrupt jump in official numbers, Mr. Gao said, "The Ministry of Health was not adequately prepared to deal with a sudden new health hazard".
After a brief silence and an abrupt jump to 28 days later, we learn that London is deserted and eerily quiet, Manchester is on fire and few remain alive anywhere in England.
The abrupt jump suggests that Chinese buyers were waiting for the much-expected new models of the phone - and particularly the more expensive 5S, which is seen as a status symbol among some wealthier consumers.
There are abrupt jumps from this year to that and back again.
After the abrupt jump-to-contact, attractive force between the tip and the substrate decreases linearly until next load drop (namely, B C stage) caused by annihilation of the hole occurs.
The variations dealt with here include both tapering and abrupt jumps in section parameters along the beam element.
Clock glitches are abrupt jumps in time, caused by hardware or software anomalies such as frequency and time steps.
Many dynamic systems in physics, chemistry, biology, engineering, and information science have impulsive dynamical behaviors due to abrupt jumps at certain instants during the dynamical processes.
