The phrase "accelerated slightly" is correct and usable in written English.
It can be used to describe a minor increase in speed or pace in various contexts, such as in scientific, technical, or everyday discussions.
Example: "The vehicle accelerated slightly as it approached the intersection, allowing it to merge smoothly with the traffic."
Alternatives: "increased marginally" or "sped up a bit."
The van accelerated slightly and steered toward him.
The drop in exports was less than that of a month ago, but the decline in imports accelerated slightly.
And inflation has accelerated slightly, although it is still below the central bank's target of about 2 percent.
As the distance increases, spontaneous ignition is accelerated slightly with a single barrier and significantly with a dual barrier.
Economic growth in China accelerated slightly in the second quarter from a 7.6percentt annual rate in the first quarter, according to a government report, as foreign investment, exports and government spending more than offset weak consumer spending.
And Christian Tetzlaff, the violin soloist, played with golden radiance, sounding almost all the time like the distilled essence of Mozart except when he accelerated slightly jerkily in some of the fast passages.
And prescription growth seems to be accelerating slightly, after rising only about 3percentt last year.
I soon learned that accelerating slightly into a turn, while braking, kept the Ski-Doo from fishtailing.
The increase in suicides, the data indicates, has been steady since 1999, accelerating slightly faster after 2006.
Employees and protesters alike said he even drove into his clinic "with attitude," accelerating slightly as if to emphasize that protesters had no right to block his gate.
China's economy grew 6.7percentt last year after accelerating slightly to 6.8percentt in the fourth quarter, the government's statistics bureau announced on Friday morning.
