The solar-powered irrigation systems produced an average of nearly two metric tons of vegetables per month.

VOA: special.2010.01.11

Cows need about two to four weeks to learn to use the robotic milking systems.

VOA: special.2009.05.12

A second part, about two thousand fifteen, will involve putting land-based systems in Europe.

VOA: special.2009.09.19

The two won for their analysis of how authority is exercised in economic systems and in companies.

VOA: standard.2009.10.12