来自MSN11 个月
Gardener shares stunning before-and-after photos after ripping out grass for raised garden ...
The photos depict a typical grassy lawn converted ... "I still need to finish adding my drip irrigation, and mix in some compost I just got. But I am pleased with the progress!" ...
pv magazine International6 个月
PV-driven drip irrigation system with compressed air storage
Researchers from China's Northwest A&F University have developed a novel drip irrigation system powered by PV, which stores energy in the form of compressed air. The use of compressed air not only ...