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- NASA's Perseverance rover may already have found signs of life on Mars, discovery of ancient lake sediments reveals | Live Science https://www.livescience.com/space/mars/nasas-perseverance-rover-may-already-have-found-signs-of-life-on-mars-discovery-of-ancient-lake-sediments-reveals 1 comment
- Raspberry Pi-Based IoT System for Grouting Void Detection in Tunnel Construction https://www.mdpi.com/2075-5309/14/11/3349 0 comments