Translation of grenzen

The Institute is using the technology with great success, in the departments that I mentioned to you on the phone. Several universities in Europe are also testing it, but we cannot publish that.
I even put on my Poncho, a plastic rain coat, in order to protect myself from the aircon-breeze. Somehow I managed to fall asleep and woke up at around six in the morning when we approach Palenque.
She was a very cute twenty six year old woman from the area, had a perfect English and could be understood well. She told us to put on good shoes and we started walking towards the valley.