The phrase 'can be focused' is correct and usable in written English.
You can use this phrase to indicate potential or potentiality. For example, "This topic can be focused on a variety of perspectives."
The shorter the wavelength, the smaller the point the laser beam can be focused on.
"I learnt from Claude that you can be focused without being tense".
That is because, like light waves, sound waves can be focused.
You can be focused and then all of a sudden the race is over.
And since the world can be focused on you, and fascinated, maybe it seems safer to say nothing.
"And it requires a continuous flux of carbon and energy in a way that can be focused to make cells".
The upside of the withdrawal is that production expenses can be focused on filmmaking rather than hoopla.
Hopefully, I can be in a situation that's going to be stable and one that can be focused on winning".
At the touch of a button, however, all of its energy can be focused onto a single point.
Lasers are employed because laser light can be focused into an extremely tiny spot of great brightness.
Similarly, an atom laser produces a coherent beam of atoms that can be focused at high intensity.
