The phrase "are able to steadily" is correct and usable in written English.
It can be used to indicate a consistent ability to perform an action over time.
Example: "The team are able to steadily improve their performance with each passing week."
Alternatives: "can consistently" or "are capable of steadily".
Only in recent years have they been able to steadily afford their racing passion.
Furthermore, the oxygen-release test showed that scaffold was able to steadily release high level of oxygen over two weeks in vitro.
The great hope remains that online-ad rates will eventually pick up, and that publishers will be able to steadily increase their online-subscription rates.
An impressive aspect of Ford's results reported Tuesday is how it has been able to steadily reduce its debt while still pouring money into new products.
The motor provides controllable pneumatic actuation so that the robotic device is able to steadily and slowly move alongside the patient in the MRI scanner, says Dan Stoianovici, an associate professor of urology and mechanical engineering at Johns Hopkins and the director of the Urology Robotics program, at which the robot was developed.
This is of particular interest in being able to steadily track changes over time, without regard to weather.
As the considerations of the previous section indicate, there is no doubt that those wishing to make a case for atoms were able to steadily strengthen their case during the closing decades of the nineteenth century.
The data and storage division at Microsoft is growing rapidly, and with the upcoming release of Microsoft SQL Server 2008 and an agressive marketing push they should be able to steadily chip away market share from Oracle in the enterprise market.
Since 1970, we've been able to steadily shrink the wage gap in this country, but in recent years that progress has stalled.
Multiply this by the various platforms you're participating in, and you'll be able to steadily build a compelling body of work that will get you noticed.
