The phrase "action is sustained" is correct and usable in written English.
It can be used in contexts where you want to indicate that an action continues or is maintained over a period of time.
Example: "In this project, we ensure that action is sustained to achieve our long-term goals."
Alternatives: "action is ongoing" or "action is maintained".
If the Senate's action is sustained in the House-Senate conference version of the bill, F-22 production would cease at 187 planes.
The Transtheoretical Model (TTM) seeks to identify the stages involved when people commence health-protective behaviors and recognizes the factors that move people from one stage to the next, ranging from Precontemplation where the family is either unaware or unengaged in making a behavioral change, to Maintenance, where Action is sustained over a period of time.
In neither can an action be sustained on the original contract.
The city's demurrer claiming that the complaint failed to state a cause of action was sustained by the trial court, and the California Supreme Court affirmed.
A motion to dismiss the complaint for failure to state facts sufficient to constitute a cause of action was sustained by the district court, and its judgment was affirmed by the court below.
In a civil oligarchy, these actions are sustained not at the barrel of the gun or by the word of one man, but through the rule of law.
These actions were sustained in the presence of angiotensin II and sodium depletion.
Another possible mechanism of tetrac action on P-gp is sustained intracellular acidification, such as that induced pharmacologically with cariporide, an NHE1 inhibitor.
NEW YORK, USA, 2 July 2007 – Despite progress made at the halfway point to the deadline for achieving the Millennium Development Goals, the global MDG targets will be achieved only if more concerted action is taken immediately and is sustained until 2015 and beyond.
