自从实验室建成后,他们已进行了一系列的实验的翻译：Since upon completion of the lab, they have carried out a series of experiments 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Since the lab is completed, they have carried out a series of experiments

Since upon completion of the lab, they have carried out a series of experiments

Completes since the laboratory, they have carried on a series of experiments

Since laboratory built, then they have been carried out a series of experiments

Since upon completion of the lab, they have carried out a series of experiments