"has been fully discussed" is correct and usable in written English.
You can use it when you want to refer to a topic that has had a thorough discussion. For example, "The implications of the new immigration policies have been fully discussed."
The geometrical configurations and rationale for each unit has been fully discussed elsewhere (Amosa et al. 2016a, c; Jami et al. 2013).
For example, UWB network is an ideal candidate for short-range high-data-rate transmission which has been fully discussed in the IEEE standard of wireless personal area network (WPAN), owing to its extremely wide bandwidth [10].
Inclusion of each measure has been fully discussed and approved by the collaborative team and user group involved in preparing the proposal for this trial.
But Dr. Fox vigorously rejected any suggestion of a retreat, and said the move from Sangin had been fully discussed, and agreed, with General McChrystal and General Petraeus, in his former guise as chief of U.S. Central Command, with overall responsibility for the wars in Afghanistan and Iraq.
According to the industrial ecology principles, the processes in sectors of pretreatment, desalination, wastewater treatment plant, reuse, recirculation and brine have been fully discussed.
If this arrangement sounds fishy, V&E finds solace in the fact that "the [LJM concept] appears to have been fully discussed in the office of the chairman and was presented and approved by Enron's board of directors".
But as I discussed in a lengthy article four years ago, this theory has been fully discredited over the years as a cost-containment tool in U.S. health care.
This new method has been fully described in a prior publication [ 6] and will be only briefly discussed here.
