The experimental research was carried out in laboratories, rather than in the field, and scientists discovered that Chlorella would be much more difficult to produce than previously thought.
تحقیقات تجربی در آزمایشگاه‌ها و نه مزارع انجام شد، و دانشمندان کشف کردند که تولید کلرلا بسیار مشکل‌تر از آن است که پیش از این فکر می‌شد.