perfecting

Those in the J-31 are built by Russia, which spent a century perfecting the required technology.

It takes a lot of hard work to appear that vacant, but Pedrad had been perfecting Kim since long before she landed on SNL.

The biggest challenge for the Amiigo before its 2015 launch is perfecting the training portion of the algorithm.

He shot a grinning parishioner outside the Perfecting Church.

A precautionary move aimed at perfecting how much more the Banzi will need to take in order to reach an optimal high.

As before stated, Cavaill-Coll and Willis worked as pioneers in perfecting and in introducing the pneumatic action.

The perfecting of expansive high-pressure engines was like the boiler, the result of years of trial.

The improved high-pressure steam-engine then in hand for iron ships was but the perfecting of his plans of twenty years before.

That notion kept Trenchard secretly occupied for a couple of days; but in the end he succeeded in perfecting it.

My assistant is taking great pleasure in perfecting me in the art of lipless conversation.