"contacts back" is not a correct grammatical phrase in written English.
If you want to refer to someone returning contact—such as a phone call—you can say "got back in touch" or "contacted me back." For example, "I had been waiting to hear back from my friend when they finally got back in touch."
A planar rear emitter back contact silicon heterojunction (PreBC-SHJ) solar cell design is presented, which combines the advantages of different high efficiency concepts using point contacts, back contacts, and silicon heterojunctions.
It was something of a labour of love, working with publisher Shortfire Press to secure the three short stories for the app, while also tapping his music contacts back home to bring in bands to provide the soundtrack.
Mr. Abaaoud also had an invaluable asset for Islamic State leaders eager to take their battle to Europe — a pool of friends and contacts back home willing to carry out attacks.
Over all, there has always been mistrust between Syrians and foreigners in the Islamic State, said Omar Abu Layla, a longtime activist in Deir al-Zour who is now in Germany and tracks jihadist groups through contacts back home, and uses a nom de guerre for his contacts' safety.
But he found his forte in fertilizer trading at IBE Trade, drawing on his contacts back in the USSR.
Without the contacts back home, he would not have had a product to deliver to the Nigerian diaspora.
The F2102V also comes with a USB-enabled desktop holder for diary and contacts back-ups, or to transfer images, although this does require separate data-synchronising software.
Normandy was controlled via various interlocking networks of ducal, ecclesiastical and family contacts, backed by a growing string of important ducal castles along the borders.
They all nodded intently, tossing nervous eye contact back and forth.
He backtracked and caught up to her. " 'Did we make eye contact back there?' " she remembered him saying.
When she arrived in a freezing Berlin, Bowles found a hostel and called her contact back in Goa.
