Abstract At present, industrial r.......
Shut-off valve requires a lower leakage as possible, the leakage of soft-sealed valve is the l.......
Emerging - Face Recognition Face recognition technology in C.......
Four years ago, Brazil discovered a huge amount of deep-sea .......
In order to resist the "secondary recession", central banks in developed countries.......
At the beginning of the year, the State Council promulgated a new round of real es.......
Affected by the long-term dry weather since the wheat planting, the pests and dise.......