"used sufficiently" is a correct and usable phrase in written English.
You can use it when you want to describe whether something is being used in the way that is needed. For example, "The emergency supplies were used sufficiently to provide assistance to all affected families."
But it has not been used sufficiently in the study of airborne radar geometry.
The present results indicate that midazolam is highly effective for the management of status epilepticus, if used sufficiently early after seizure onset.
The stimulation with tDCS appears to be more difficult for the patients than previously suspected and probably requires a considerable education effort before it can be used sufficiently.
This evolution has led to an international dynamics of valuating local materials, such as crushed sand, which is not used sufficiently often due to the high rate of fine particles that it contains.
The study has several points to its credit, but it could be asked whether the lanes were used sufficiently compared to the traffic flows on many urban streets or rural roads.
Oftentimes, belief might not be used sufficiently because of a lack of confidence, questionable arrogance, or a negative roadblock.
The real question is not whether Europe is using sufficiently aggressive Keynesian stimulus, but whether Europe will resume its economic reform efforts as the crisis abates.
WiTricity can wirelessly charge electric vehicles at a range of 1-2 feet, using sufficiently large coils; this is currently being brought to market.
To date, sedentary occupational (biomechanical) risk factors for low back pain have not been measured using sufficiently precise tools, partly due to technological limitations.
In this paper, we have analyzed the optimal combination of wage cuts and layoffs from the viewpoint of behavioral economics, using sufficiently wide valuable data in Japan.
Therefore, using sufficiently long guard intervals, the ISI between pilots and data is completely eliminated [19], thereby simplifying the channel estimation procedure.
