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The robot has an electron beam which can lift up lunar regolith while the vacuum will suck it up and move it away. The drill will go deep into the ground and the digger arm will transfer the soil into the bin. Bin will have a cover, to prevent soil getting mixed with regolith. Robots' parts are big so they can carry more soil with lesser trips at a time. The electron beam's negative charge will interact with positively charged regolith and it will eject the dust.