The phrase "are held trapped" is correct and usable in written English.
It can be used to describe a situation where individuals or things are confined or unable to escape from a particular place or condition.
Example: "The animals are held trapped in the cage, waiting for their release."
Alternatives: "are confined" or "are stuck".
Crowds then tried to break into an office where the meeting was being held, trapping Mr. Ford for 90 minutes.
As larvae, many insects have gills that can extract oxygen dissolved in water, while others need to rise to the water surface to replenish air supplies which may be held or trapped in special structures.
It makes no difference: the children are trapped, they are held captive and their drawings reflect this.
Once multiple ions are held in the ion trap, the ions no longer experience pure Mathieu trajectories and a variety of new effects are possible.
In vitro incubations of polymersomes in plasma indicate gradual opsonization through plasma protein adsorption, such that, when vesicles are held in an optical trap and presented to a phagocyte, rapid engulfment occurs only after incubation times of similar magnitude to τ1/2.
The hazing has included being sprayed with water or pepper spray, being pelted with rubber buckshot or bean bags, or having the trap they are held in -- a long metal tube resembling a culvert -- banged upon, creating a frightening din.
BEIRUT, Lebanon — Dozens of pro-government Syrians attempted to assault an American diplomatic delegation that included the ambassador on Thursday, striking its motorcade as it traveled to a meeting with an opposition figure in Damascus and then trying to break into an office where the meeting was held, essentially trapping the participants inside for 90 minutes.
Larvae were held by trapping them between a slide and a coverslip in natural seawater using several layers of tape as spacer.
All electrodes are held in place by two MACOR®; holders at both ends of the trap.
The beads were attached to a single RBC by proceeding as follows: two beads were optically trapped while RBC was held by the optical trap generated by the Raman excitation beam.
