If he could breathe without mechanical aid, so much the better.

Surely the men who had labored on these boats would have approved of mechanical aid.

Without a mechanical aid, he had difficulty making himself heard.

The mechanical aid has place and purpose in the perfection of this human machine with which we are, by our choice, either blessed or cursed.

She feared doing that alone, even with the mechanical aid of the medical unit, so had avoided making any decisions in that direction.

His only mechanical aid was that of a horse!

I slowly opened my eyes as far as I could without mechanical aid.

At least he wasn't alone in his need for mechanical aid.

She passed through her busy, active, and happy life without ever having been able to stand or move without mechanical aid.

"Close enough to converse without mechanical aid now, close enough to."